TMP91xy20AFG Toshiba, TMP91xy20AFG Datasheet - Page 114

• Manufacturer Part Number: TMP91xy20AFG
• Manufacturer: Toshiba

Specifications of TMP91xy20AFG

• Package: LQFP144
• Rom Types(m=mask,p=otp, F=flash,e=eeprom): M
• Rom Combinations: 8
• Ram Combinations: 8
• Architecture: 16-bit CISC
• Usb/spi Channels: -
• Uart/sio Channels: 1
• I2c/sio Bus Channels: 1
• (s)dram Controller: 1
• Adc 10-bit Channel: 8
• Da Converter: -
• Timer 8-bit Channel: 4
• Timer 16-bit Channel: 1
• Pwm 8-bit Channels: -
• Pwm 16-bit Channels: -
• Cs/wait Controller: 4
• Dual Clock: Y
• Number Of I/o Ports: 77
• Power Supply Voltage(v): 3.0 to 3.6

(3) Timer registers (TA0REG and TA1REG)
Note: The same memory address is allocated to the timer register and the register buffer.
set in the timer register TA0REG or TA1REG matches the value in the corresponding
up counter, the comparator match detect signal goes active. If the value set in the timer
register is 00H, the signal goes active when the up counter overflows.
buffer.
buffer structure is enabled or disabled. It is disabled if <TA0RDE> = 0 and enabled if
<TA0RDE> = 1.
timer register when a 2
in PPG mode. Hence the double buffer cannot be used in timer mode.
buffer, write data to the timer register, set <TA0RDE> to 1, and write the following
data to the register buffer. Figure 3.7.3 shows the configuration of TA0REG.
Timer registers 0 (TA0REG)
These are 8-bit registers, which can be used to set a time interval. When the value
The TA0REG are double buffer structure, each of which makes a pair with register
The setting of the bit TA01RUN<TA0RDE> determines whether TA0REG’s double
When the double buffer is enabled, data is transferred from the register buffer to the
A reset initializes <TA0RDE> to 0, disabling the double buffer. To use the double
The address of each timer register is as follows.
All these registers are write only and cannot be read.
Register buffers 0
Internal data bus
When <TA0RDE> = 0, the same value is written to the register buffer and the timer
register; when <TA0RDE> = 1, only the register buffer is written to.
TA0REG: 000102H
TA2REG: 00010AH
Figure 3.7.3 Configuration of TA0REG
Shift trigger
Write
n
overflow occurs in PWM mode, or at the start of the PPG cycle
91C820A-112
TA01RUN<TA0RDE>
Y
Selector
TA1REG: 000103H
TA3REG: 00010BH
S
B
A
Matching detection in PPG cycle
2
Write to TA0REG
n
overflow of PWM
TMP91C820A
2008-02-20