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Software – Renesas Asynchronous SH7145F User Manual

Page 8

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SH7145F

Asynchronous Serial Data Transmission/Reception

REJ06B0357-0100O/Rev.1.00

March 2004

Page 8 of 17

4.

Software

(1) Module Descriptions

Table 4 lists the modules used in the task example.

Table 4

Module Descriptions

Module

Label

Function

Main routine

main

Calls modules

SCI routine

init_sci

Initial settings of SCI1

Receive routine

rcv_sci

Receives serial data

Transmit routine

trans_sci

Transmits serial data

Error handling

err_int

Handles receive errors

(2) Argument Descriptions

Table 5 lists the arguments used in the task example.

Table 5

Argument Descriptions

Argument

Function

Module

Rev_data[0–2]

Stores SCI_1 receive data

Receive routine

trans_data

Transmits data from SCI_1

Transmit routine

(3) On-Chip Register Descriptions

Table 6 lists the on-chip registers used in the task example. The set values shown are the values
used in the task example and differ from the initial settings.