UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 165

• 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

(1) 16-bit timer counter 0n (TM0n)
TM0n is a 16-bit read-only register that counts count pulses.
The counter is incremented in synchronization with the rising edge of the count clock.
If the count value is read during operation, then input of the count clock is temporarily stopped, and the count
value at that point is read.
The count value is reset to 0000H in the following cases.
<1> At Reset signal generation
<2> If TMC0n3 and TMC0n2 are cleared
<3> If the valid edge of the TI00n pin is input in the mode in which clear & start occurs when inputting the valid
<4> If TM0n and CR00n match in the mode in which clear & start occurs on a match of TM0n and CR00n
<5> OSPT0n is set to 1 in one-shot pulse output mode or the valid edge is input to the TI00n pin
Caution Even if TM0n is read, the value is not captured by CR01n.
edge of the TI00n pin
(n = 0 to 3)
Address: FF10H, FF11H (TM00), FFB0H, FFB1H (TM01)
Symbol
TM0n
FF5AH, FF5BH (TM02), FFA6H, FFA7H (TM03)
CHAPTER 7 16-BIT TIMER/EVENT COUNTERS 00 TO 03
Figure 7-5. Format of 16-Bit Timer Counter 0n (TM0n)
FFB1H (TM01)
FF5BH (TM02)
FFA7H (TM03)
FF11H (TM00)
User’s Manual U17554EJ4V0UD
After reset: 0000H
FFB0H (TM01)
FF5AH (TM02)
FFA6H (TM03)
FF10H (TM00)
R
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