Renesas Asynchronous SH7145F Manuel d'utilisateur télécharger pdf (Page 5)

SH7145F

Multiprocessor Communications

REJ06B0358-0100O/Rev.1.00 March 2004 Page 5 of 17

• Bit Rate Register (BRR_0)

This 8-bit register is used to adjust the bit rate. The SCI has independent baud rate generators

for the individual channels, allowing different bit rates to be set for each. See the hardware

manual for details on setting values, execution rate relationships, etc.

Table 2 shows the function allocations for the task example.

Table 2 Function Allocations

Function Classification Function Allocation

TXD0 Pin Channel 0 transmit data output pin

RXD0 Pin Channel 0 transmit data input pin

SMR_0 SCI0 Sets communication format to asynchronous mode

SCR_0 SCI0 Enables transmit operation

SSR_0 SCI0 Status flag showing SCI0 operation status

SDCR_0 SCI0 Specifies LSB-first

BRR_0 SCI0 Sets communication bit rate

TSR_0 SCI0 Register for transmitting serial data

TDR_0 SCI0 Register for storing transmit data

RSR_0 SCI0 Register for receiving serial data

RDR_0 SCI0 Register for storing receive data

1 2 3 4 5 6 7 8 9 10 ... 16 17

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Renesas Asynchronous SH7145F Manuel d'utilisateur Page 5