TMP91C824
91C824-95
TMRA01 Mode Register
7
6
5
4
3
2
1
0
Bit symbol
TA01M1
TA01M0
PWM01
PWM00
TA1CLK1
TA1CLK0
TA0CLK1
TA0CLK0
Read/Write
R/W
After Reset
0
0
0
0
0
0
0
0
Function
Operation mode
00: 8-Bit Timer Mode
01: 16-Bit Timer Mode
10: 8-Bit PPG Mode
11: 8-Bit PWM Mode
PWM cycle
00: reserved
01: 2
6
-1
10: 2
7
-1
11: 2
8
-1
Source clock for TMRA1
00: TA0TRG
01:
φ
T1
10:
φ
T16
11:
φ
T256
Source clock for TMRA0
00: TA0IN pin
01:
φ
T1
10:
φ
T4
11:
φ
T16
00
TA0IN (external input)
01
φ
T1 (prescaler)
10
φ
T4 (prescaler)
11
φ
T16 (prescaler)
TA01MOD
<TA01M1
∼
TA01M0>
≠
01
TA01MOD
<TA01M1
∼
TA01M 0>
=
01
00
Comparator
output from TMRA0
01
φ
T1
10
φ
T16
11
φ
T
256
Overflow output from
TMRA0
(16-Bit Timer Mode)
00
reserved
01
(2
6
-1)
×
clock source
10
(2
7
-1)
×
clock source
11
(2
8
-1)
×
clock source
00
Two 8-bit timers
01
16-bit timer
10
8-bit PPG
11
8-bit PWM (TMRA0) + 8-bit timer (TMRA1)
PWM cycle selection
TA01MOD
(0104H)
TMRA0 source clock selection
TMRA1 source clock selection
TMRA01 operation mode selection
Figure 3.7.5 TMRA registers