UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 192

• Manufacturer Part Number: UPD78F0890GK(A)-GAJ-AX
• Description: 8BIT MCU, 128K FLASH, 7K RAM, LQFP
• Manufacturer: NEC

Specifications of UPD78F0890GK(A)-GAJ-AX

• Controller Family/series: UPD78F
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 10
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

7.4 Operation of 16-Bit Timer/Event Counters 00 to 03
7.4.1 Interval timer operation
in Figure 7-28 allows operation as an interval timer.
00n (CR00n) as the interval.
the TM0n value cleared to 0 and the interrupt request signal (INTTM00n) is generated.
mode register 0n (PRM0n).
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Setting 16-bit timer mode control register 0n (TMC0n) and capture/compare control register 0n (CRC0n) as shown
The basic operation setting procedure is as follows.
<1> Set the CRC0n register (see Figure 7-28 for the set value).
<2> Set any value to the CR00n register.
<3> Set the count clock by using the PRM0n register.
<4> Set the TMC0n register to start the operation (see Figure 7-28 for the set value).
Interrupt requests are generated repeatedly using the count value preset in 16-bit timer capture/compare register
When the count value of 16-bit timer counter 0n (TM0n) matches the value set in CR00n, counting continues with
The count clock of 16-bit timer/event counter 0n can be selected with bits 0 and 1 (PRM0n0, PRM0n1) of prescaler
Setting
Caution CR00n cannot be rewritten during TM0n operation.
Remark For how to enable the INTTM00n interrupt, see CHAPTER 17 INTERRUPT FUNCTIONS.
Remark n = 0 to 3
CHAPTER 7 16-BIT TIMER/EVENT COUNTERS 00 TO 03
User’s Manual U17554EJ4V0UD