Marantz-IS201-rs232-sm 维修电路原理图.pdf
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1、 RS-232C Control Specification : Rev 00 Marantz America, Inc. 2006 All rights are reserved. Reproduction in whole or in part is prohibited without the written consent of copyright. All specifications might be subject to change without notice. IS201 RS-232C Control Specification Category : Accessory
2、Document Version : 1.0 Author(s) : Marantz America, Inc. Date : 2006/08/30 Number of Page : 11 RadioFans.CN 收音机爱 好者资料库IS201 RS-232C Control Specification Page: 2 / 11 Document Version 1.0 Company Restricted Table of Contents 1. Introduction.3 1-1. Purpose.3 1-2. Scope.3 1-3. Abbreviations .3 2. Glob
3、al Description.3 2-1. Overview.3 2-2. Block Diagram.3 2-3. Interface connection specification of the 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 tr
4、ansmission 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 and Au
5、to status feedback.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. Specification of Auto status feedback.6 3-3-4. Example of the transactions.6 3-3-5. Examples of the handshaking flowchart.7 3-3-5-1. Example of suc
6、cessful handshaking.7 3-3-5-2. Examples of handshaking error.7 4. Recommendations of Command, Status and Layer definition.8 5. Commands.9 6. Revision history.11 RadioFans.CN 收音机爱 好者资料库IS201 RS-232C Control Specification Page: 3 / 11 Document Version 1.0 Company Restricted 1. Introduction 1-1. Purpos
7、e This document was written as a reference specification of products that are controled by the host controller. 1-2. Scope This document would be using by software or hardware engineers for production of the product. 1-3. Abbreviations Abbreviation Description 2. Global Description 2-1. Overview A H
8、ost controller can control or watch out the product as a Slave very easily via the communication cable. 2-2. Block Diagram * The product connector is using D-SUB 9pin male. * RS232C cable must use D-SUB 9pin female to connect the products. 2-3. Interface connection specification of the product uP In
9、terface Signal name Connection device D-Sub Pin Connecter - N.C. - 1 TxD (output) 2 UART RxD (input) RS232C Level shift driver 3 - N.C. - 4 - GND GND 5 - N.C. - 6 - N.C. - 7 - N.C. - 8 - N.C. - 9 RS232C D-SUB (9pin,Male) Stereo Mini Jack (3.5mm) 2-4. Assumptions and Dependencies HOST (Controller) SL
10、AVE (The product) RS232C cable (straight) Connector D-SUB (9pin, male) 53 2IS201 RS-232C Control Specification Page: 4 / 11 Document Version 1.0 Company Restricted 3. Detailed Description The interface specification between the product and a Host controller is described below. 3-1. Connection format
11、 3-1-1. Physical connection Host (Controller) Slave (the product) (Serial setting ) Baud Rate : 9600bps Data Bits : 8bit Parity : None Stop bit : 1bit Handshaking : None 3-1-1-1. Data transmission sequence from Host to Slave Host (Controller) Slave (The product) TxD RxD RxD TxD 1. Host starts a data
12、 transmission from TxD. 2. Host performs the data transmission of the number of required bytes, and ends a transmission. 3-1-1-2. Data transmission sequence from Slave to Host Host (Controller) Slave (The product) TxD RxD RxD TxD 1. Slave starts a data transmission from TxD. 2. Slave performs the da
13、ta transmission of the number of required bytes, and ends a transmission. TxD RxD GND RxD TxD GND IS201 RS-232C Control Specification Page: 5 / 11 Document Version 1.0 Company Restricted 3-2. Transmission data format 3-2-1. Transmission data format from Host to Slave There are two kinds of transmiss
14、ion data form from Host shown below. 3-2-1-1. Form1: Command Command is a data that requests some status change. Start character : COMMAND : see “Command list” End character (CR) : 0Dh 3-2-1-2. Form2: Status request Status request is a data that requests a answer of some status. Start character : Re
15、quest status : see “Status request list” Request character : ? End character (CR) : 0Dh 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
16、 data from Host. (ACK is sent to Host when Slave has no related status by the Command.) Start character : , ACK : 06h, End character (CR) : 0Dh NAK is a reply data from Slave when Slave got an incorrect Command data, Status request data or some other data from Host. Start character : , NAK : 15h, En
17、d character (CR) : 0Dh 3-2-2-2. Form2: Status answer and Auto status feedback Status answers are reply data when Slave got an acceptable Request status or Command data from Host. Auto status feedbacks are send to Host data when a Slaves status is changed. Start character : Answer character : see “St
18、atus list” End character (CR) : 0Dh AACK 06h CR 0Dh start ANAK 15h CR 0Dh start start command “xxx:”+”.” end 0Dh start request status “xxx:?”+”.” end 0Dh start status “xxx:”+”.” end 0Dh IS201 RS-232C Control Specification Page: 6 / 11 Document Version 1.0 Company Restricted 3-3. The transaction sequ
19、ences and the regulations 3-3-1. The transaction sequences The transactions have three kinds of sequence. *A transaction is a Command from Host then Slave will be an answer by Status answer, ACK or NAK. *A transaction is a Status request from Host then Slave will be an answer by Status answer or NAK
20、. *A transaction is Auto status feedback from Slave when a Slaves status changed. (If the auto status feedback is enabled.) 3-3-2. The transaction regulations The transactions have some kinds of regulation. * An answer (ACK, NAK or Status answer) transmittion by Slave has to finish within 500ms when
21、 got a Command or a Status request from Host. * 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 a term of waitinng time from a finishing of previous transmission of a Command or a Status request . * Slave has
22、 to finish a transaction under 500ms when it sends Auto status feedback data. 3-3-3. Specification of Auto status feedback There are some specific regulations about Auto status feedback. * The product status has segmented into four layers of 1, 2, 3 and 4. * The status of layer 1 are assigned most k
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