UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 171

• 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

7.3 Registers Controlling 16-Bit Timer/Event Counters 00 to 03
(1) 16-bit timer mode control register 0n (TMC0n)
The following six registers are used to control 16-bit timer/event counters 00 to 03.
• 16-bit timer mode control register 0n (TMC0n)
• Capture/compare control register 0n (CRC0n)
• 16-bit timer output control register 0n (TOC0n)
• Prescaler mode register 0n (PRM0n)
• Port mode register 0, 3, 13 (PM0, PM3, PM13)
• Port register 0, 3, 13 (P0, P3, P13)
This register sets the 16-bit timer operating mode, the 16-bit timer counter 0n (TM0n) clear mode, and output
timing, and detects an overflow.
Rewriting TMC0n is prohibited during operation (when TMC0n3 and TMC0n2 = other than 00). However, it can
be changed when TMC0n3 and TMC0n2 are cleared to 00 (stopping operation) and when OVF0n is cleared to 0.
TMC0n can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation clears TMC0n to 00H.
Caution 16-bit timer counter 0n (TM0n) starts operation at the moment TMC0n2 and TMC0n3 are set to
Remark n = 0 to 3
values other than 0, 0 (operation stop mode), respectively. Set TMC0n2 and TMC0n3 to 0, 0 to
stop the operation.
CHAPTER 7 16-BIT TIMER/EVENT COUNTERS 00 TO 03
User’s Manual U17554EJ4V0UD
171