3 application block diagram, 4 i/o lines description – Rainbow Electronics AT91CAP9S250A User Manual

Page 527

Advertising
background image

527

6264A–CAP–21-May-07

AT91CAP9S500A/AT91CAP9S250A

35.3

Application Block Diagram

Figure 35-2. Application Block Diagram

35.4

I/O Lines Description

Table 35-1.

I/O Line Description

Name

Description

Type

Active Level

SCK

Serial Clock

I/O

TXD

Transmit Serial Data

I/O

RXD

Receive Serial Data

Input

CTS

Clear to Send

Input

Low

RTS

Request to Send

Output

Low

Smart

Card

Slot

USART

RS485

Drivers

Differential

Bus

IrDA

Transceivers

Field Bus

Driver

EMV

Driver

IrDA

Driver

IrLAP

RS232

Drivers

Serial

Port

Serial

Driver

PPP

Advertising