R01UH0823EJ0100 Rev.1.00
Page 511 of 1823
Jul 31, 2019
RX23W Group
23. Multi-Function Timer Pulse Unit 2 (MTU2a)
23.2.23
Timer Cycle Data Registers (TCDR)
Note:
The TCDR registers must not be accessed in 8-bit units; they should be accessed in 16-bit units.
The TCDR registers specify the count value to switch the count direction of the TCNTS counter. These registers are used
only in complementary PWM mode. Set half the PWM cycle as the TCDR register value. The TCDR register is
constantly compared with the TCNTS counter in complementary PWM mode, and when a match occurs, the TCNTS
counter switches direction (down-count to up-count).
23.2.24
Timer Cycle Buffer Registers (TCBR)
Note:
The TCBR registers must not be accessed in 8-bit units; they should be accessed in 16-bit units.
The TCBR registers function as buffer registers for the TCDR register, and specify the count value to switch the count
direction of the TCNTS counter. These registers are used only in complementary PWM mode. The TCBR register value
is transferred to the TCDR register with the transfer timing set in the TMDR register.
Address(es): MTU.TCDR 000D 0A14h
b15
b14
b13
b12
b11
b10
b9
b8
b7
b6
b5
b4
b3
b2
b1
b0
Value after reset:
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Address(es): MTU.TCBR 000D 0A22h
b15
b14
b13
b12
b11
b10
b9
b8
b7
b6
b5
b4
b3
b2
b1
b0
Value after reset:
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1