Denon DN-A7100 - AV Surround Preamplifier User's Guide download pdf (Page 41)

ENGLISH

RS-232C CONTROL SPECIFICATION

GLOBAL DESCRIPTION

OVERVIEW

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

BLOCK DIAGRAM

HOST

(Controller)

RS232C cable (straight)

SLAVE

(The product)

Connector

D-SUB (9pin, male)

* The product connector is using D-SUB 9pin male.

* RS232C cable must use D-SUB 9pin female to connect the products.

INTERFACE CONNECTION SPECIFICATION OF THE PRODUCT

Processor Interface Signal name Connection device D-Sub Pin Connecter

- N.C. - 1

RS232C

D-SUB

(9pin,male)

12345

6789

UART

TxD (output)

RS232C Level shift driver

RxD (input) 3

- N.C. - 4

- GND GND 5

- N.C. - 6

- N.C. - 7

- N.C. - 8

- N.C. - 9

DETAILED DESCRIPTION

The interface speciﬁ cation between the product and a Host controller is described below.

CONNECTION FORMAT

Physical connection

TxD

RxD

GND

RxD

TxD

GND

Host (Controller)

(Serial setting <RS232C basic>)

Baud Rate : 9600bps

Data Bits : 8bit

Parity : None

Stop bit : 1bit

Handshaking : None

Slave (the product)

• Data transmission sequence from Host to Slave

TxD RxD

RxD TxD

Host (Controller) Slave (The product)

1. Host starts a data transmission from TxD.

2. Host performs the data transmission of the number of required bytes, and ends a transmission.

• Data transmission sequence from Slave to Host

TxD RxD

RxD TxD

Host (Controller) Slave (The product)

1. Slave starts a data transmission from TxD.

2. Slave performs the data transmission of the number of required bytes, and ends a transmission.

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Denon DN-A7100 - AV Surround Preamplifier User's Guide Page 41

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