UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 173

• 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

Note The TI001 pin valid edge is set by bits 5 and 4 (ES011, ES010) of prescaler mode register 01 (PRM01).
Remark TO01: 16-bit timer/event counter 01 output pin
Address: FFB6H
Symbol
TMC01
TI001: 16-bit timer/event counter 01 input pin
TM01: 16-bit timer counter 01
CR001: 16-bit timer capture/compare register 001
CR011: 16-bit timer capture/compare register 011
OVF01 is set to 1 when the value of TM01 changes from FFFFH to 0000H in all the operation modes (free-running
timer mode, clear & start mode entered by TI001 pin valid edge input, and clear & start mode entered upon a match
between TM01 and CR001).
It can also be set to 1 by writing 1 to OVF01.
TMC011
Clear (0)
TMC013
OVF01
Set (1)
0
1
0
0
1
1
Figure 7-9. Format of 16-Bit Timer Mode Control Register 01 (TMC01)
7
0
After reset: 00H
• Match between TM01 and CR001 or match between TM01 and CR011
• Match between TM01 and CR001 or match between TM01 and CR011
• Trigger input of TI001 pin valid edge
Clears OVF01 to 0 or TMC013 and TMC012 = 00
Overflow occurs.
TMC012
CHAPTER 7 16-BIT TIMER/EVENT COUNTERS 00 TO 03
0
1
0
1
6
0
Disables 16-bit timer/event counter 01 operation. Stops supplying operating clock.
Clears 16-bit timer counter 01 (TM01).
Free-running timer mode
Clear & start mode entered by TI001 pin valid edge input
Clear & start mode entered upon a match between TM01 and CR001
R/W
User’s Manual U17554EJ4V0UD
5
0
Condition to reverse timer output (TO01)
Operation enable of 16-bit timer/event counter 01
4
0
TM01 overflow flag
TMC013
3
TMC012
2
Note
TMC011
1
OVF01
<0>
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