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7
TA01MOD
Bit symbol
TA01M1
(0104H)
Read/Write
After reset
0
Function
Operation mode
00: 8-bit timer mode
01: 16-bit timer mode
10: 8-bit PPG mode
11: 8-bit PWM mode
TMRA01 Mode Register
6
5
4
TA01M0
PWM01
PWM00
0
0
0
PWM cycle
00: Reserved
6
01: 2
7
10: 2
8
11: 2
Figure 3.7.5 TMRA Registers
91C824-97
3
2
TA1CLK1
TA1CLK0
TA0CLK1
R/W
0
0
Source clock for TMRA1
Source clock for TMRA0
00: TA0TRG
00: TA0IN pin
01: φT1
01: φT1
10: φT16
10: φT4
11: φT256
11: φT16
TMRA0 source clock selection
00
TA0IN (External input)
φT1 (Prescaler)
01
φT4 (Prescaler)
10
φT16 (Prescaler)
11
TMRA1 source clock selection
TA01MOD
<TA01M1:0> ≠ 01
00
Comparator
output from TMRA0
φT1
01
φT16
10
φT256
11
PWM cycle selection
00
Reserved
× source clock
6
01
2
× source clock
7
10
2
× source clock
8
11
2
TMRA01 operation mode selection
00
Two 8-bit timers
01
16-bit timer
10
8-bit PPG
8-bit PWM (TMRA0) + 8-bit timer (TMRA1)
11
TMP91C824
1
0
TA0CLK0
0
0
TA01MOD
<TA01M1:0> = 01
Overflow output from
TMRA0
(16-bit timer mode)
2008-02-20
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