TMP91CP27 Datasheet, PDF (98/246 Pages) Toshiba Semiconductor – Original CMOS 16-Bit Microcontroller

TMP91CP27
TMRA23 Mode Register
TA23MOD Bit symbol
(010CH) _Read/Write
After reset
Function
7
6
TA23M1 TA23M0
0
0
Operation mode
00: 8-bit timer mode
01: 16-bit timer mode
10: 8-bit PPG mode
11: 8-bit PWM mode
5
4
3
2
1
0
PWM21 PWM20 TA3CLK1 TA3CLK0 TA2CLK1 TA2CLK0
R/W
0
0
0
0
0
0
PWM cycle
Source clock for TMRA3 Source clock for TMRA2
00: Reserved
01: 2⁶ − 1
10: 2⁷ − 1
11: 2⁸ − 1
00: TA2TRG
01: φT1
10: φT16
11: φT256
00: Reserved
01: φT1
10: φT4
11: φT16
TMRA2 source clock selection
00 Do not set
01 φT1 (Prescaler)
10 φT4 (Prescaler)
11 φT16 (Prescaler)
TMRA3 source clock selection
TA23MOD
<TA23M1:0> ≠ 01
00 Comparator output
from TMRA2
01 φT1
10 φT16
11 φT256
TA23MOD
<TA23M1:0> = 01
Overflow output from
TMRA2
(16-bit timer mode)
PWM cycle selection
00 Reserved
01 (2⁶ − 1) × Clock source
10 (2⁷ − 1) × Clock source
11 (2⁸ − 1) × Clock source
TMRA23 operation mode selection
00 Two 8-bit timers
01 16-bit timer
10 8-bit PPG
11 8-bit PWM (TMRA2) + 8-bit timer (TMRA3)
Figure 3.8.8 Register for TMRA
91CP27-96
2003-11-05