TMP91xy25FG Toshiba, TMP91xy25FG Datasheet - Page 93

• Manufacturer Part Number: TMP91xy25FG
• Manufacturer: Toshiba

Specifications of TMP91xy25FG

• Package: LQFP100
• Rom Types(m=mask,p=otp, F=flash,e=eeprom): Romless
• Rom Combinations: Romless
• Ram Combinations: Ramless
• Architecture: 16-bit CISC
• Usb/spi Channels: -
• Uart/sio Channels: 2
• I2c/sio Bus Channels: -
• (s)dram Controller: -
• Adc 10-bit Channel: 4
• Da Converter: -
• Timer 8-bit Channel: 4
• Timer 16-bit Channel: -
• Pwm 8-bit Channels: -
• Pwm 16-bit Channels: -
• Cs/wait Controller: 4
• Dual Clock: Y
• Number Of I/o Ports: 49
• Power Supply Voltage(v): 3.0 to 3.6

3.7
8-Bit Timers (TMRA)
channels and can operate in any of the following 4 operating modes.
•
•
•
•
In addition, a timer flip-flop and a prescaler are provided for each pair of channels.
(Special-function registers).
operate in the same manner; hence only the operation of TMRA01 is explained here.
The TMP91C025 features 4 channel (TMRA0 to TMRA3) built-in 8-bit timers.
These timers are paired into 2 modules: TMRA01 and TMRA23. Each module consists of 2
Figure 3.7.1 to Figure 3.7.2 Show block diagrams for TMRA01 and TMRA23.
Each channel consists of an 8-bit up counter, an 8-bit comparator and an 8-bit timer register.
The operation mode and timer flip-flops are controlled by 5 bytes registers SFRs
Each of the 2 modules (TMRA01 and TMRA23) can be operated independently. All modules
The contents of this chapter are as follows.
8-bit interval timer mode
16-bit interval timer mode
8-bit programmable square wave pulse generation output mode
(PPG: Variable duty cycle with variable period)
8-bit pulse width modulation output mode
(PWM: Variable duty cycle with constant period)
3.7.1
3.7.2
3.7.3
3.7.4
(address)
External
SFR
Block Diagrams
Operation of Each Circuit
SFRs
Operation in Each Mode
(1) 8-bit timer mode
(2) 16-bit timer mode
(3) 8-bit PPG (Programmable pulse generation) output mode
(4) 8-bit PWM (Pulse width modulation) output mode
(5) Setting for each mode
pin
Table 3.7.1 Registers and Pins for Each Module
Input pin for external
clock
Output pin for timer
flip-flop
Timer run register
Timer register
Timer mode register
Timer flip-flop control
register
Module
91C025-91
TA01RUN (0100H)
TA01MOD (0104H)
TA1FFCR (0105H)
(shared with PB4)
(shared with PA1)
TA0REG (0102H)
TA1REG (0103H)
TMRA01
TA1OUT
TA0IN
TA23RUN (0108H)
TA3FFCR (010DH)
TA23MOD (010CH)
(shared with PA2)
TA2REG (010AH)
TA3REG (010BH)
TMRA23
TA3OUT
None
TMP91C025
2007-02-28