UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 175

• 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 TI003 pin valid edge is set by bits 5 and 4 (ES031, ES030) of prescaler mode register 03 (PRM03).
Remark TO03: 16-bit timer/event counter 03 output pin
Address: FFADH
Symbol
TMC03
TI003: 16-bit timer/event counter 03 input pin
TM03: 16-bit timer counter 03
CR003: 16-bit timer capture/compare register 003
CR013: 16-bit timer capture/compare register 013
OVF03 is set to 1 when the value of TM03 changes from FFFFH to 0000H in all the operation modes (free-running
timer mode, clear & start mode entered by TI003 pin valid edge input, and clear & start mode entered upon a match
between TM03 and CR003).
It can also be set to 1 by writing 1 to OVF03.
TMC031
Clear (0)
TMC033
OVF03
Set (1)
0
1
0
0
1
1
Figure 7-11. Format of 16-Bit Timer Mode Control Register 03 (TMC03)
7
0
After reset: 00H
• Match between TM03 and CR003 or match between TM03 and CR013
• Match between TM03 and CR003 or match between TM03 and CR013
• Trigger input of TI003 pin valid edge
Clears OVF03 to 0 or TMC033 and TMC032 = 00
Overflow occurs.
TMC032
CHAPTER 7 16-BIT TIMER/EVENT COUNTERS 00 TO 03
0
1
0
1
6
0
Disables 16-bit timer/event counter 03 operation. Stops supplying operating clock.
Clears 16-bit timer counter 03 (TM03).
Free-running timer mode
Clear & start mode entered by TI003 pin valid edge input
Clear & start mode entered upon a match between TM03 and CR003
R/W
User’s Manual U17554EJ4V0UD
5
0
Condition to reverse timer output (TO03)
Operation enable of 16-bit timer/event counter 03
4
0
TM03 overflow flag
TMC033
3
TMC032
2
Note
TMC031
1
OVF03
<0>
175