R01UH0823EJ0100 Rev.1.00
Page 502 of 1823
Jul 31, 2019
RX23W Group
23. Multi-Function Timer Pulse Unit 2 (MTU2a)
23.2.15
Timer Read/Write Enable Registers (TRWER)
The TRWER registers enable or disable access to the registers and counters that have write-protection capability against
accidental modification in MTU3 and MTU4.
This bit enables or disables access to the registers that have write-protection capability against accidental modification.
[Clearing condition]
When 0 is written to the RWE bit after reading the RWE bit = 1
Registers and Counters having Write-Protection Capability against Accidental Modification
22 registers: MTUn.TCR, MTUn.TMDR, MTUn.TIORH, MTUn.TIORL, MTUn.TIER, MTUn.TGRA, MTUn.TGRB,
MTU.TOER, MTU.TOCR1, MTU.TOCR2, MTU.TGCR, MTU.TCDR, MTU.TDDR, and MTUn.TCNT (n = 3, 4)
Address(es): MTU.TRWER 000D 0A84h
b7
b6
b5
b4
b3
b2
b1
b0
—
—
—
—
—
—
—
RWE
Value after reset:
0
0
0
0
0
0
0
1
Bit
Symbol
Bit Name
Description
R/W
b0
Read/Write Enable
0: Read/write access to the registers is disabled
1: Read/write access to the registers is enabled
R/W
b7 to b1
—
Reserved
These bits are read as 0. The write value should be 0.
R/W