UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 185

• 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

(4) Prescaler mode register 0n (PRM0n)
PRM0n is the register that sets the TM0n count clock and TI00n and TI01n pin input valid edges.
Rewriting PRM0n is prohibited during operation (when TMC0n3 and TMC0n2 = other than 00).
PRM0n can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation clears PRM0n to 00H.
Cautions 1. Do not apply the following setting when setting the PRM0n1 and PRM0n0 bits to 11 (to
Remark n = 0 to 3
2. If the operation of the 16-bit timer/event counter 0n is enabled when the TI00n or TI01n pin
3. The valid edge of TI010 and timer output (TO00) cannot be used for the P01 pin at the same
specify the valid edge of the TI00n pin as a count clock).
• Clear & start mode entered by the TI00n pin valid edge
• Setting the TI00n pin as a capture trigger
is at high level and when the valid edge of the TI00n or TI01n pin is specified to be the
rising edge or both edges, the high level of the TI00n or TI01n pin is detected as a rising
edge. Note this when the TI00n or TI01n pin is pulled up. However, the rising edge is not
detected when the timer operation has been once stopped and then is enabled again.
time, and the valid edge of TI011 and timer output (TO01) cannot be used for the P06 pin at
the same time. Select either of the functions.
CHAPTER 7 16-BIT TIMER/EVENT COUNTERS 00 TO 03
User’s Manual U17554EJ4V0UD
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