M32C80 Datasheet, PDF(328/352 Page) Renesas Technology Corp – 16/32-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M32C/80 SERIES

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M32C80 Datasheet, PDF (328/352 Pages) Renesas Technology Corp – 16/32-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M32C/80 SERIES

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M32C/80 Group

24. Precautions (Special Function Registers (SFRs))

24.3 Special Function Registers (SFRs)

24.3.1 Register Settings

Table 24.2 lists registers containing bits which can only be written to. Set these registers with immediate

values. When establishing the next value by altering the present value, write the present value to the

RAM as well as to the register. Transfer the next value to the register after making changes in the RAM.

Table 24.2 Registers with Write-only Bits

Register

Address

Register

WDTS Register

000E16

U3BRG Register

G0RI Register

00EC16

U3TB Register

G1RI Register

012C16

U2BRG Register

U1BRG Register

02E916

U2TB Register

U1TB Register

U4BRG Register

U4TB Register

TA11 Register

TA21 Register

TA41 Register

02EB16, 02EA16

02F916

02FB16, 02FA16

030316, 030216

030516, 030416

030716, 030616

UDF Register

TA0 Register(1)

TA1 Register(1)

TA2 Register(1)

TA3 Register(1)

TA4 Register(1)

DTT Register

030C16

U0BRG Register

ICTB2 Register

030D16

U0TB Register

NOTE:

1. In one-shot timer mode and pulse width modulation mode only.

Address

032916

032B16, 032A16

033916

033B16, 033A16

034416

034716, 034616

034916, 034816

034B16, 034A16

034D16, 034C16

034F16, 034E16

036916

036B16, 36A16

Rev. 1.00 Nov. 01, 2005 Page 309 of 330

REJ09B0271-0100

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