Rev. 6.00, 08/04, page 240 of 628
Register Configuration
Table 9.2 shows the register configuration of timer A.
Table 9.2
Timer A Registers
Name
Abbr.
R/W
Initial Value
Address
Timer mode register A
TMA
R/W
—
H'FFB0
Timer counter A
TCA
R
H'00
H'FFB1
Clock stop register 1
CKSTPR1
R/W
H'FF
H'FFFA
9.2.2
Register Descriptions
Timer Mode Register A (TMA)
Bit
Initial value
Read/Write
7
W
6
W
5
W
4
1
3
TMA3
0
R/W
0
TMA0
0
R/W
2
TMA2
0
R/W
1
TMA1
0
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.
Содержание H8/38024 Series
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