Rev. 6.00, 08/04, page 241 of 628
Bits 3 to 0—Internal Clock Select (TMA3 to TMA0)
Bits 3 to 0 select the clock input to TCA. The selection is made as follows.
Description
Bit 3
TMA3
Bit 2
TMA2
Bit 1
TMA1
Bit 0
TMA0
Prescaler and Divider Ratio
or Overflow Period
Function
0
0
0
0
PSS,
φ
/8192
(initial value) Interval timer
1
PSS,
φ
/4096
1
0
PSS,
φ
/2048
1
PSS,
φ
/512
1
0
0
PSS,
φ
/256
1
PSS,
φ
/128
1
0
PSS,
φ
/32
1
PSS,
φ
/8
1
0
0
0
PSW, 1 s
Clock time
1
PSW, 0.5 s
base
1
0
PSW, 0.25 s
(when using
1
PSW, 0.03125 s
32.768 kHz)
1
0
0
PSW and TCA are reset
1
1
0
1
Содержание H8/38024 Series
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