SR7400/8400 : Rev00

Marantz
RS232C Control Specification for SR7400/8400
Category Document Version Date Number of Page

: : : :

AV. Receiver 1.00 11/22/2003 17

RS232C Control Spec.

SR7400/8400
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Table of Contents

Introduction..... 3 1-1. Purpose..... 3 1-2. Scope..... 3 1-3. Abbreviations..... 3 1-4. References..... 3 2. Global Description.... 3 2-1. Overview..... 3 2-2. Block Diagram..... 3 2-3. Interface connecter specification of This Product... 3 2-4. Assumptions and Dependencies.... 3 3. Detailed Description..... 4 3-1. Connection format.... 4 3-1-1. Physical connection.... 4 3-1-1-1. Data transmission sequence from Host to Slave... 4 3-1-1-2. Data transmission sequence from Slave to Host... 4 3-2. Transmission data format..... 5 3-2-1. Transmission data format from Host to Slave... 5 3-2-1-1. Form1: Command..... 5 3-2-1-2. Form2: Status request.... 5 3-2-2. Transmission data format from Slave to Host... 5 3-2-2-1. Form1: ACK/NAK.... 5 3-2-2-2. Form2: Status answer.... 5 3-3. The transaction sequences and the regulations.... 6 3-3-1. The transaction sequences.... 6 3-3-2. The transaction regulations.... 6 3-3-3. Example of the transactions.... 6 3-3-4. Examples of the handshaking flowchart... 7 3-3-4-1. Example of successful handshaking....7 3-3-4-2. Example of error handshaking.... 7 3-4. Command list..... 8 3-4-1. Normal Command list.... 8 3-5. Status request and Status answer list....13 3-5-1. Normal Status request and Status answer list...13 4. Revision history.....17 1.
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1. Introduction

1-1. Purpose
This document was written in order to clarify specification for control this product by the host controller.

1-2. Scope

This document would be using by software or hardware engineers for production of this product. This product is [marantz SR6400/SR5400]. (Its refered to as This product after this.)

1-3. Abbreviations

Abbreviation Description

1-4. References

2. Global Description

2-1. Overview

A Host controller can control or watch out This product as a Slave very easily via the communication cable.

2-2. Block Diagram

HOST (Controller) SLAVE (This product) Connector D-SUB (9pin, male)

RS232C cable (straight)

2-3. Interface connecter specification of This Product
Processor Interface Signal name N.C. UART TxD (output) RxD (input) N.C. GND N.C. GENERAL PORT CTS (input) RTS (output) N.C. Connection device RS232C Level shift driver RS232C Level shift driver D-Sub Pin Connecter 1 RS232C D-SUB 2 (9pin,male) 9
2-4. Assumptions and Dependencies
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3. Detailed Description

The interface specification between This product and a Host controller is described below.

3-1. Connection format

3-1-1. Physical connection Host (Controller) RTS CTS TxD RxD GND Slave (This product) CTS RTS RxD TxD GND (Serial setting <RS232C basic>) Baud Rate : 9600bps Data Bits : 8bit Parity : None Stop bit : 1bit Handshaking : (RTS/CTS)

3-1-1-1. Data transmission sequence from Host to Slave Host (Controller) RTS CTS TxD RxD
Slave (This product) CTS RTS RxD TxD
1. The host checks that CTS is High, then starts a data transmission from TxD. 2. The host performs the data transmission of the number of required bytes, and ends a transmission. * The host can do RTS to Low during the transmission for disable data transmission from a slave. 3-1-1-2. Data transmission sequence from Slave to Host Host (Controller) Slave (This product) RTS CTS TxD RxD CTS RTS RxD TxD
1. The slave checks that CTS is High, then starts a data transmission from TxD. 2. The slave performs the data transmission of the number of required bytes, and ends a transmission. * The slave can do RTS to Low during the transmission for disable data transmission from a host.
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3-2. Transmission data format
3-2-1. Transmission data format from Host to Slave There are two kinds of transmission data form from Host shown below. 3-2-1-1. Form1: Command Command is a data that requests some status change. Start character : @ ID : 0 ~ 9 (A Slave has own ID, A Host has to set the ID.) COMMAND : see Command list End character : 0Dh
S ta rt ID @ 0Dh COMMAND E nd
3-2-1-2. Form2: Status request Status request is a data that requests a answer of some status. Start character : @ ID : 0 ~ 9 (A Slave has own ID, A Host has to set the ID.) Request character : ? Request status : see Status request list End character : 0Dh
S ta rt ID @ ? 0Dh R e q u e s t s ta tu s End
3-2-2. Transmission data format from Slave to Host There are two kinds of transmission data form from Slave shown below. 3-2-2-1. Form1: ACK/NAK ACK is a reply data from Slave when Slave got an acceptable command data from Host. ACK : 06h

ACK 06h

NAK is a reply data from Slave when Slave got an incorrect Command data, Status request data or some other data from Host. NAK : 15h

NAK 15h

3-2-2-2. Form2: Status answer Status answers are reply data when Slave got an acceptable Request status data from Host. Start character : @ ID : 0 ~ 9 (A Slave will set own ID.) Answer character : see Status answer list End character : 0Dh
Start @ ID Status answer End 0Dh
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3-3. The transaction sequences and the regulations
3-3-1. The transaction sequences The transactions have two kinds of sequence. *A transaction is a Command from Host then the Slave will be an answer by ACK or NAK. *A transaction is a Status request from Host then the Slave will be an answer by Status answer. 3-3-2. The transaction regulations The transactions have some kinds of regulation. * A Command or a Status request transmission by the Host has to finish within one second. * An answer (ACK, NAK or Status answer) transmittion by the Slave has to finish within one second when got a Command or a Status request from the Host. * The Host must not transmit an another Command or Status request until "it receives a answer by a previous Command or Status request" or "it passes one second from a finishing of previous transmission of a Command or a Status request ". 3-3-3. Example of the transactions <Host> RTS <Slave> CTS
CTS Command TxD max. 1sec RxD Max. 1sec ACK/NAK Status request max. 1sec Status answer

max. 1sec

a transaction
Example of the transactions
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3-3-4. Examples of the handshaking flowchart 3-3-4-1. Example of successful handshaking
HOST Com m and Com m and a c c e p ta b le ACK SLAVE
S ta tu s re q u e s t R equest a c c e p ta b le S ta tu s answer
3-3-4-2. Example of error handshaking
HOST Com m and Com m and in c o r r e c t NAK SLAVE
S ta tu s re q u e s t R equest in c o r r e c t NAK
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3-4. Command list

3-4-1. Normal Command list Command POWER (Samples indicated the ID set to as 1.) Character Sample POWER ON AA "@1AA,0x0D POWER OFF AB "@1AB",0x0D POWER(Toggle) AC "@1AC",0x0D DSS CA "@1CA",0x0D TV CB "@1CB",0x0D DVD CD "@1CD",0x0D VCR1 CE "@1CE",0x0D AUX1 CG "@1CG",0x0D AUX2 CH "@1CH,0x0D CD CJ "@1CJ",0x0D TAPE CK "@1CK",0x0D CD-R CL "@1CL",0x0D FM CN "@1CN",0x0D AM(MW) CO "@1CO,0x0D TUNER CQ "@1CQ",0x0D CS MULTI-CHANNEL INPUT ON "@1CS",0x0D MULTI-CHANNEL INPUT OFF CT "@1CT,0x0D A/D DIG AUTO DA "@1DA",0x0D A/D DIG FIX DB "@1DB",0x0D A/D ANA DC "@1DC",0x0D VOLUME UP EA "@1EA",0x0D VOLUME DOWN EB "@1EB",0x0D VOLMUE UP FAST EC "@1EC",0x0D VOLUME DOWN FAST ED "@1ED",0x0D BASS UP FA "@1FA",0x0D BASS DOWN FB "@1FB",0x0D TREBLE UP FC "@1FC",0x0D TREBLE DOWN FD "@1FD",0x0D MUTE OFF GA "@1GA",0x0D MUTE ON GB "@1GB",0x0D VIDEO MUTE OFF HA "@1HA",0x0D VIDEO MUTE ON HB "@1HB",0x0D ATT OFF IA "@1IA",0x0D ATT ON IB "@1IB",0x0D SPEAKER A OFF JA "@1JA",0x0D SPEAKER A ON JB "@1JB",0x0D SPEAKER B OFF KA "@1KA",0x0D SPEAKER B ON KB "@1KB",0x0D SLEEP OFF LA "@1LA",0x0D SLEEP 10min LB "@1LB",0x0D SLEEP 20min LC "@1LC",0x0D SLEEP 30min LD "@1LD",0x0D SLEEP 40min LE "@1LE",0x0D SLEEP 50min LF "@1LF",0x0D SLEEP 60min LG "@1LG",0x0D SLEEP 70min LH "@1LH",0x0D SLEEP 80min LI "@1LI,0x0D SLEEP 90min LJ "@1LJ",0x0D DISP (Toggle) MA "@1MA",0x0D OSD OFF NA "@1NA",0x0D OSD ON NB "@1NB",0x0D

DIRECT KEY

RDS SURROUND MODE
SR7400/8400 STEREO DTS-MODE SRS-MODE SOURCE DIRECT SURR. MODE NEXT SURR. MODE PREV TEST TONE OFF TEST TONE ON NIGHT OFF NIGHT ON RE-EQ ON RE-EQ OFF MAIN+SUB MAIN SUB DC TRG ON DC TRG OFF Ud UV UW UX UY UZ VA VB WA WB XA XB YGA YGB YGC YJA YJB
Page: 10 / 17 Document Version [1.00] "@1Ud",0x0D "@1UV",0x0D "@1UW",0x0D "@1UX",0x0D @1UY,0x0D @1UZ,0x0D "@1VA",0x0D "@1VB",0x0D "@1WA",0x0D "@1WB",0x0D "@1XA,0x0D "@1XB,0x0D "@1YGA",0x0D "@1YGB",0x0D "@1YGC",0x0D "@1YJA",0x0D "@1YJB",0x0D
TEST TONE NIGHT RE-EQ (HT-EQ) BILINGUAL REMOTE DC TREGGER
SR7400/8400 Multi Room control commands as from MULTI ROOM
Command MULTI ROOM MULTI ROOM OFF MULTI ROOM ON DSS TV DVD VCR1 AUX1 AUX2 CD TAPE CD-R FM AM(MW) TUNER A/D(Toggle) MULTI VOL. UP MULTI VOL. DOWN MULTI VOL. VARIABLE MULTI VOL. FIXED MULTI ROOM SPEAKER OFF MULTI ROOM SPEAKER ON MULTI ROOM SPEAKER MUTEOFF MULTI ROOM SPEAKER MUTE ON MULTI SPK. UP MULTI SPK. DOWN MULTI SPK. VARIABLE MULTI SPK. FIXED MULTI ROOM MUTE OFF MULTI ROOM MUTE ON MR SLEEP OFF MR SLEEP 10min MR SLEEP 20min MR SLEEP 30min MR SLEEP 40min MR SLEEP 50min MR SLEEP 60min MR SLEEP 70min MR SLEEP 80min MR SLEEP 90min MULTI ROOM OSD OFF MULTI ROOM OSD ON Character aA aB cA cB cD cE cG cH cJ cK cL cN cO cQ dD eA eB fA fB ja jb ga gb hA hB kA kB gA gB lA lB lC lD lE lF lG lH lI lJ nA nB
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INPUT SIGNAL MULTI ROOM VOLUME MULTI ROOM VOLUME MODE MULTI SPEAKER MULTI SPEAKER MUTE MULTI ROOM SPEAKER VOLUME MULTI ROOM SPEAKER VOLUME MODE MULTI ROOM MUTE

MULTI SLEEP MODE

MULTI ROOM OSD
Sample "@1aA",0x0D "@1aB,0x0D "@1cA",0x0D "@1cB",0x0D "@1cD",0x0D "@1cE",0x0D "@1cG",0x0D "@1cH",0x0D "@1cJ",0x0D "@1cK",0x0D "@1cL",0x0D "@1cN",0x0D "@1cO,0x0D "@1cQ",0x0D "@1dD",0x0D "@1eA",0x0D "@1eB",0x0D "@1fA",0x0D "@1fB",0x0D "@1ja",0x0D "@1jb",0x0D "@1ga",0x0D "@1gb",0x0D "@1hA",0x0D "@1hB",0x0D "@1kA",0x0D "@1kB",0x0D "@1gA",0x0D "@1gB",0x0D "@1lA",0x0D "@1lB",0x0D "@1lC",0x0D "@1lD",0x0D "@1lE",0x0D "@1lF",0x0D "@1lG,0x0D "@1lH",0x0D "@1lI",0x0D "@1lJ",0x0D "@1nA",0x0D "@1nB",0x0D
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Multi Room control commands as from MULTI ROOM

Command TUNER FREQUENCY FREQ. UP FREQ. DOWN AUTO UP START/STOP AUTO DOWN START/STOP P-SCAN PRESET UP PRESET DOWN F-DIRECT OFF F-DIRECT ON STEREO MONO DIRECT KEY 0 DIRECT KEY 1 DIRECT KEY 2 DIRECT KEY 3 DIRECT KEY 4 DIRECT KEY 5 DIRECT KEY 6 DIRECT KEY 7 DIRECT KEY 8 DIRECT KEY 9 DSS TV DVD VCR1 AUX1 AUX2 CD TAPE CD-R FM AM(MW) TUNER Character pB pC pD pE qB qC qD rA rB rC rD sA sB sC sD sE sF sG sH sI sJ ca cb cd ce cg ch cj ck cl cn co cq Sample "@1pB",0x0D "@1pC",0x0D "@1pD",0x0D "@1pE,0x0D "@1qB",0x0D "@1qC",0x0D "@1qD",0x0D "@1rA",0x0D "@1rB",0x0D "@1rC",0x0D "@1rD",0x0D "@1sA",0x0D "@1sB",0X0D "@1sC",0x0D "@1sD",0x0D "@1sE",0x0D "@1sF",0x0D "@1sG",0x0D "@1sH,0x0D "@1sI",0x0D "@1sJ",0x0D "@1cA",0x0D "@1cB",0x0D "@1cD",0x0D "@1cE",0x0D "@1cG",0x0D "@1cH",0x0D "@1cJ",0x0D "@1cK",0x0D "@1cL",0x0D "@1cN",0x0D "@1cO,0x0D "@1cQ",0x0D
TUNER PRESET F-DIRECT T-MODE

INPUT SELECT(M-SPKR)

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3-5. Status request and Status answer list
3-5-1. Normal Status request and Status answer list Request Status POWER Status Char. & Sample A (@1?A,0x0D) (Samples indicated the ID set to as 1.) Status answer Char. & Sample POWER ON AA (@1AA,0x0D) POWER OFF AB DSS BA TV BB DVD BD VCR1 BE AUX1 BG DSS CA TV CB DVD CD VCR1 CE AUX1 CG AUX2 CH CD CJ TAPE CK CD-R CL FM CN AM(MW) CO TUNER CQ MULTI-CHANNEL INPUT ON CR A/D DIG AUTO DA A/D DIG FIX DB A/D ANA DC VOL.= XXXdB EAXXX (@1EA-15,0x0D) (XXX = -90+99) max EB EC min - FAxx BASS:xxdB(xx=-9+9) FCxx TREBLE:xxdB(xx=-9+9) AUDIO MUTE OFF GA AUDIO MUTE ON GB VIDEO MUTE OFF HA VIDEO MUTE ON HB ATT OFF IA ATT ON IB SPEAKER A OFF JA SPEAKER A ON JB SPEAKER B OFF KA SPEAKER B ON KB SLEEP OFF LA SLEEP ON : XXX (001-120) LBXXX DISP ON(INPUT) MA DISP ON(SURR) MB AUTO DISPLAY OFF MC DISP OFF MD OSD OFF NA OSD ON NB MENU OFF OA MENU ON OB

VIDEO INPUT

B (@1?B,0x0D)

AUDIO INPUT

C (@1?C,0x0D)

INPUT MODE

D (@1?D,0x0D)
VOLUME Status BASS Status TREBLE Status AUDIO MUTE VIDEO MUTE ATT Status SPEAKER A SPEAKER B SLEEP MODE DISPLAY Status OSD Status MENU

E (@1?E,0x0D)

FA (@1?FA,0x0D) FC (@1?FC,0x0D)
G(@1?G,0x0D) H (@1?H,0x0D) I (@1?I,0x0D) J (@1?J,0x0D) K (@1?K,0x0D) L (@1?L,0x0D) M (@1?M,0x0D) N (@1?N,0x0D) O (@1?Z,0x0D)

SR7400/8400 P (@1?P,0x0D) TUNER FFREQUENCY FM:076.00-108.00 AM,MW:520-1710 LW:152-282 Q (@1?Q,0x0D) TUNER FREQUENCY PAxxxx:(Not tuned+Freq.) PBxxxx:(Tuned+Freq.) Frequency Scaning Not available
Preset No. (XX=0150) Not Preset mode (XX=00) Not available
Page: 14 / 17 Document Version [1.00] (FM: 87.55 = 8755) (FM:108.00 = 0800) (MW: 520=0520) (LW:282=0282) PC (@1PC,0x0D) P- (@1P-,0x0D)
QAXX or QBXX (A=!tuned, B=tuned) Q- (@1Q-,0x0D)

TUNER PRESET

F-DIRECT TUNER MODE
R (@1?R,0x0D) (answer) R[D-DIR][T-MODE]

SURROUND MODE

U (@1?U,0x0D)
TEST TONE Status (with T-TONE MDOE)

V (@1?V,0x0D)

NIGHT MODE RE-EQ (HT-EQ)
W (@1?W,0x0D) X (@1?X,0x0D)
F-DIRECT OFF F-DIRECT ON Not available AUTO STEREO MONO Not available AUTO DOLBY DD+PLx MOVIE DD+PLx MUSIC AAC+PLx MOVIE AAC+PLx MUSIC DOLBY PLx MOVIE DOLBY PLx MUSIC DOLBY PLx GAME DOLBY PL MOVIE DOLBY PL MUSIC DOLBY PL GAME DOLBY PROLOGIC EX/ES VIRTUAL6.1 DOLBY DIGITAL EX DTS ES DTS CINEMA(DTS) NEO6 CINEMA NEO6 MUSIC Mch-STEREO CS CINEMA CS MUSIC CS MONO VIRTUAL STEREO S-DIRECT TEST TONE OFF TEST TONE L TEST TONE C TEST TONE R TEST TONE SR TEST TONE SBR TEST TONE SBL TEST TONE SL TEST TONE SW NIGHT MODE OFF NIGHT MODE ON RE-EQ OFF RE-EQ ON
RA* (@1TAC,0x0D) RB* R-* R*C R*D R*U0 (@1U0,0x0D) U6 U7 U8 U9 UA UB UC UD UE UF UG UH UI UJ UK UL UM UO UP UQ UR US UT Uc Ud UX V*A (@1VBA,0x0D) V*B * = T-MODE V*C A = AUTO V*D B = MANUAL V*E V*F V*G V*H V*I WA WB XA XB
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D DIGITAL(AC-3) DD SURROUND DD SURR EX DTS DTS ES DISCREATE SIGNAL FORMAT u (@1?u,0x0D) DTS ES MATRIX AAC PCM HDCD OTHER NONE_DETECTION 32K 44.1K 48K SAMPLING FREQ. v (@1?v,0x0D) 88.2K 96K OUT OF RANGE Not available See below CHANNEL STATUS w (@1?w,0x0D) Not available * Description of CHANNEL STATUS answer character. (about : $%) (Character $ and % would be 0 to 9 or A to F,it uses to as hex. bit data.) | Bit 2 LFE $ bit 1 SL 0 SR | 3 S % bit L R | 0 C L
uA uB uC uD uE uF uG uJ uK uM uN vA vB vC vD vE vH vwA$% w-
When a bit of channel status is effective, it sets to 1. And when it is opposite condition, it sets to 0. ex.) * If front L and R channel status are only effective, it will send @1w146,0Dh. * If front and surr. L/R channel status are effective, it will send @1w1B6,0Dh. * If all channel status are effective, it will send @1w1FF,0Dh. * If all channel status are not effective, it will send @1w180,0Dh. SL L : YB C : YC R : YD SR : YE SBR : YF SBL : YG SL : YH SW : YI Not available LEFT DISTANCE RIGHT DISTANCE CENTER DISTANCE SUBWF DISTANCE SURR. L DISTANCE SURR. R DISTANCE BACK L DISTANCE BACK R DISTANCE LFE
(@1YB***,0x0D) *** = +/-?(? = 00~99)

CHANNEL LEVEL

Y (@1?Y*,0x0D)
SPEAKER DISTANCE [ XX: (0030) (1 foot = 01) (10 feet=10) ]
xA ("@1?xA", 0x0D) xB ("@1?xB, 0x0D) xC ("@1?xC", 0x0D) xD ("@1?xD", 0x0D) xE ("@1?xE", 0x0D) xF ("@1?xF", 0x0D) xG ("@1?xG", 0x0D) xH ("@1?xH", 0x0D)

(@1YB --,0x0D) = Not available xAXX (@1xA100x0D) xBXX xCXX xDXX xEXX xFXX xGXX xHXX
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yA ("@1?yA", 0x0D) yB ("@1?yB", 0x0D) SPEAKER SIZE yC ("@1?yC", 0x0D) yD ("@1?yD", 0x0D) yE ("@1?yE", 0x0D) SPEAKER BACK BILINGUAL REMOTE DC TRIGGER

MULTIROOM Status

yF ("@1?yF", 0x0D) yG ("@1?yG",0x0D) yJ ("@1?yJ",0x0D)

a (@1?a,0x0D)

FRONT LAGE FRONT SMALL CENTER LAGE CENTER SMALL CENTER OFF SUBWF ON SUBWF OFF SURR. LAGE SURR. SMALL SURR. OFF BACK LAGE BACK SMALL BACK OFF BACK 1ch BACK 2ch BACK NONE MAIN+SUB MAIN SUB DC TRG ON DC TRG OFF
MULTI ROOM OFF MULTI ROOM ON Not available DSS TV DVD VCR1 AUX1 Not available DSS TV DVD VCR1 AUX1 AUX2 CD TAPE CD-R FM AM(MW) TUNER Not available VOL.XXX(-90+99) MAX. MIN.(-) VARIABLE FIXED MUTE OFF (MR) MUTE ON (MR) MULTI SPEAKER OFF MULTI SPEAKER ON VOL.XXX(-90+99) MAX. MIN.(-) MULTI SPK VARIABLE MULTI SPK FIXED SLEEP OFF SLEEP XXX(1120)
yAA yAB yBA yBB yBC yCA yCB yDA yDB yDC yEA yEB yEC yFA yFB yFC yGA yGB yGC yJA yJB
a0 (@1a0,0x0D) a1 (@1a1,0x0D) a- (@1a-,0x0D) bA bB bD bE bG bcA cB cD cE cG cH cJ cK cL cN cO cQ ceAXXX eB eC fA fB gA gB jA jB hAXXX hB hC kA kB lA lBXXX

VIDEO INPUT (Multi Room)

b (@1?b,0x0D)

AUDIO INPUT (Multi Room)

c (@1?c,0x0D)
VOLUME Status (Multi Room) VOLUME SET Status (Multi Room) MUTE Status (Multi Room) SPEAKER Status (Multi Room) VOLUME Mode Status (Multi Room SPK) VOLUME Status (Multi Room SPK) SLEEP TIMER Status (Multi Room)
e (@1?e,0x0D) f (@1?f,0x0D) g (@1?g,0x0D) j (@1?j,0x0D) h(@1?h,0X0D) k (@1?k,0x0D) l (@1?l,0x0D)
OSD Status (Multi Room) TUNER FREQUENCY (Multi Room) z (@1?z,0x0D) MULTI OSD OFF MULTI OSD ON TUNER FREQUENCY XXXX=076.00-108.00(FM) =520-1710(AM,MW) = 152-282(LW) Not available Preset No. (XX=0150) Not Preset mode (XX=00) Not available
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zA zB pAXXXX or pBXXXX (FM:87.50 = 8750) (FM:108.00=0800) (MW: 520=0520) (MW:1710=1710) p- (@1p-,0x0D) qAXX or qBXX (A=!tuned, B=tuned) q- (@1q-,0x0D)

p (@1?p,0x0D)

TUNER PRESET (Multi Room)

q (@1?q,0x0D)

4. Revision history
Rev. Date 00 11/20/03 Owner MAI Change description Released