HD6413008F RENESAS [Renesas Technology Corp], HD6413008F Datasheet - Page 243

• Manufacturer Part Number: HD6413008F
• Description: Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series
• Manufacturer: RENESAS [Renesas Technology Corp]

8.2.9
16TCR is an 8-bit register. The 16-bit timer has three 16TCRs, one in each channel.
Channel
0
1
2
Each 16TCR is an 8-bit readable/writable register that selects the timer counter clock source,
selects the edge or edges of external clock sources, and selects how the counter is cleared.
16TCR is initialized to H'80 by a reset and in standby mode.
Bit 7—Reserved: This bit cannot be modified and is always read as 1.
Bit
Initial value
Read/Write
Timer Control Registers (16TCR)
Abbreviation
16TCR0
16TCR1
16TCR2
Reserved bit
⎯
⎯
7
1
CCLR1
Counter clear 1/0
These bits select the counter clear source
R/W
6
0
Function
16TCR controls the timer counter. The 16TCRs in all channels
are functionally identical. When phase counting mode is selected
in channel 2, the settings of bits CKEG1 and CKEG0 and TPSC2
to TPSC0 in 16TCR2 are ignored
CCLR0
R/W
5
0
CKEG1
Clock edge 1/0
These bits select external clock edges
R/W
4
0
Rev.4.00 Aug. 20, 2007 Page 199 of 638
CKEG0
R/W
3
0
TPSC2
R/W
Timer prescaler 2 to 0
These bits select the timer
counter clock
2
0
TPSC1
R/W
REJ09B0395-0400
1
0
8. 16-Bit Timer
TPSC0
R/W
0
0