HD64F38024HV Datasheet, PDF (272/684 Pages) Renesas Technology Corp – Hardware Manual Renesas 8-Bit Single-Chip Microcomputer H8 Family/H8/300L Super Low Power Series

Section 9 Timers
Register Configuration
Table 9.2 shows the register configuration of timer A.
Table 9.2 Timer A Registers
Name
Timer mode register A
Timer counter A
Clock stop register 1
Abbr.
TMA
TCA
CKSTPR1
R/W
R/W
R
R/W
Initial Value
—
H'00
H'FF
Address
H'FFB0
H'FFB1
H'FFFA
9.2.2 Register Descriptions
Timer Mode Register A (TMA)
Bit
7
⎯
Initial value
⎯
Read/Write
W
6
5
⎯
⎯
⎯
⎯
W
W
4
3
2
1
0
⎯ TMA3 TMA2 TMA1 TMA0
1
0
0
0
0
⎯
R/W
R/W
R/W
R/W
TMA is an 8-bit read/write register for selecting the prescaler, and input clock.
Bits 7 to 5—Reserved
Bits 7 to 5 are reserved; only 0 can be written to these bits.
Bit 4—Reserved
Bit 4 is reserved; it is always read as 1, and cannot be modified.
Rev. 8.00 Mar. 09, 2010 Page 250 of 658
REJ09B0042-0800