UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 195

• 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

7.4.2 PPG output operations
in Figure 7-31 allows operation as PPG (Programmable Pulse Generator) output.
that correspond to the count values preset in 16-bit timer capture/compare register 01n (CR01n) and in 16-bit timer
capture/compare register 00n (CR00n), respectively.
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 7-31 for the set value).
<2> Set any value to the CR00n register as the cycle.
<3> Set any value to the CR01n register as the duty factor.
<4> Set the TOC0n register (see Figure 7-31 for the set value).
<5> Set the count clock by using the PRM0n register.
<6> Set the TMC0n register to start the operation (see Figure 7-31 for the set value).
In the PPG output operation, rectangular waves are output from the TO0n pin with the pulse width and the cycle
Setting
Caution To change the value of the duty factor (the value of the CR01n register) during operation, see
Remarks 1. For the setting of the TO0n pin, see 7.3 (5) Port mode register 0 (PM0) to (7) Port mode
Remark n = 0 to 3
2. For how to enable the INTTM00n interrupt, see CHAPTER 17 INTERRUPT FUNCTIONS.
Caution 2 in Figure 7-33 PPG Output Operation Timing.
register 13 (PM13).
CHAPTER 7 16-BIT TIMER/EVENT COUNTERS 00 TO 03
User’s Manual U17554EJ4V0UD
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