Toshiba TMP91C815F Data Book page 99

7
TA01MOD
Bit symbol TA01M1
(0104H)
Read/Write
After Reset 0
Operation mode
00: 8-Bit Timer Mode
01: 16-Bit Timer Mode
Function
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 -1
7
10: 2 -1
8
11: 2 -1
Figure 3.7.5 TMRA registers
91C815-
96
3 2
TA1CLK1 TA1CLK0 TA0CLK1
R/W
0 0
Source clock for TMRA1 Source clock for TMRA0
00: TA0TRG 00: TA0IN pin
01: φ T1 01: φ T1
10: φ T16 10: φ T4
11: φ T256 11: φ T16
TMRA0 source clock selection
00 TA0IN (external input)
φ T1 (prescaler)
01
φ T4 (prescaler)
10
φ T16 (prescaler)
11
TMRA1 source clock selection
TA01MOD
<TA01M1∼TA01M0>≠01
Comparator
00
output from TMRA0
φ T1
01
φ T16
10
φＴ 256
11
PWM cycle selection
00 reserved
-1) × clock source
6
01 (2
-1) × clock source
7
10 (2
-1) × clock source
8
11 (2
TMRA01 operation mode selection
00 Two 8-bit timers
01 16-bit timer
10 8-bit PPG
11 8-bit PWM (TMRA0) + 8-bit timer (TMRA1)
TMP91C815
1 0
TA0CLK0
0 0
TA01MOD
<TA01M1∼TA01M 0>=01
Overflow output from
TMRA0
(16-Bit Timer Mode)