tmp1941af TOSHIBA Semiconductor CORPORATION, tmp1941af Datasheet - Page 149

• Manufacturer Part Number: tmp1941af
• Description: 32-bit Tx System Risc
• Manufacturer: TOSHIBA Semiconductor CORPORATION

11. 8-Bit Timers (TMRAs)
named TMRA01 and TMRA23. The TMRA01 contains the TMRA0 and the TMRA1, and the TMRA23
contains the TMRA2 and TMRA3. Each timer module has the following operating modes:
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•
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components of a timer channel are an 8-bit up-counter, an 8-bit comparator and an 8-bit timer register. Two
timer channels share a prescalar and a timer flip-flop.
and the TMRA23 each, which can be independently programmed. The TMRA01 and the TMRA23 are
functionally equivalent. In the following sections, any references to the TMRA01 also apply to the TMRA23.
The TMP1941AF has a four-channel 8-bit timer (TMRA0–TMRA3), which is comprised of two modules
Figure 11.1 and Figure 11.2 are block diagrams of the TMRA01 and TMRA23 respectively. The main
A total of six 8-bit registers provide control over the operating modes and timer flip-flops for the TMRA01
Table 11.1 gives the pins and registers for the two timer modules.
8-bit interval timer mode
16-bit interval timer mode
8-bit programmable pulse generation (PPG) mode (Variable frequency, variable duty cycle)
8-bit pulse width modulated (PWM) signal generation mode (Fixed frequency, variable duty cycle)
(Addresses)
Registers
External
Pins
Table 11.1 Pins and Registers for the TMRA01 and the TMRA23
External clock input
Timer flip-flop output
Timer Run register
Timer registers
Timer Mode register
Timer Flip-Flop Control
register
TMP1941AF-109
TA01RUN (0xFFFF_F100)
TA01MOD (0xFFFF_F104)
TA1FFCR (0xFFFF_F105)
TA0REG (0xFFFF_F102)
TA1REG (0xFFFF_F103)
(Shared with P70)
(Shared with P71)
TMRA01
TA1OUT
TA0IN
TA3FFCR (0xFFFF_F10D)
TA23RUN (0xFFFF_F108)
TA23MOD (0xFFFF_F10C)
TA2REG (0xFFFF_F10A)
TA3REG (0xFFFF_F10B)
(Shared with P72)
(Shared with P73)
TMRA23
TA3OUT
TA2IN
TMP1941AF
2003-03-27