Marantz SR7300 - 1. Technical Specifications and Service Tool; Technical Specifications; Service Tool Information

Hardware Software Interface (HSI) Spec. Page: 3 / 19
SR7300/SR7300OSE Document Version [2.01]
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 SR7300/SR7300OSE]. (It’s 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
2-3. Interface connecter specification of This Product
Processor Interface 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 5
- N.C.
-
6
CTS (input) 7 GENERAL PORT
RTS (output)
RS232C Level shift driver
8
- N.C. - 9
RS232C
D-SUB
(9pin,male)
2-4. Assumptions and Dependencies
HOST
(Controller)
SLAVE
(This product)
RS232C cable (straight)
Connector
D-SUB (9pin, male)