TMP91xy20AFG Toshiba, TMP91xy20AFG Datasheet - Page 122

• 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

3.7.4
TA01RUN
TA01MOD
TA1REG
INTETA01
TA01RUN
X: Don’t care, − : No change
Example: To generate an INTTA1 interrupt every 8.0 µ s at fc = 36 MHz, set each register as follows:
Operation in Each Mode
(1) 8-bit timer mode
Note: The input clocks for TMRA0 and TMRA1 are different from as follows.
a.
Both TMRA0 and TMRA1 can be used independently as 8-bit interval timers.
Generating interrupts at a fixed interval (Using TMRA1)
TMRA1 then set the operation mode, input clock and a cycle to TA01MOD and
TA1REG register respectively. Then, enable the interrupt INTTA1 and start
TMRA1 counting.
MSB
← –
← 0
← 0
← X
← –
TMRA0: TA0IN input, φ T1, φ T4 or φ T16.
TMRA1: Match output of TMRA0, φ T1, φ T16, φ T256.
To generate interrupts at constant intervals using TMRA1 (INTTA1), first stop
Select the input clock using Table 3.7.2.
* Clock state
7
6
–
0
0
1
X
5
X
X
1
0
X
4
X
X
0
1
X
3
–
1
1
–
–
LSB
0
–
1
2
–
0
91C820A-120
1
0
–
–
1
0
0
–
–
0
–
–
System clock: High frequency (fc)
Prescaler clock: f
Stop TMRA1 and clear it to 0.
Select 8-bit timer mode and select φ T1 (0.2 µ s at fc = 36
MHz) as the input clock.
Set TA1REG to 8.0 µ s ÷ φ T1 = 40 = 28H.
Enable INTTA1 and set it to level 5.
Start TMRA1 counting.
FPH
TMP91C820A
2008-02-20