UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 194

• 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

194
f
f
PRS
PRS
Notes 1.
Remark Interval time = (N + 1) × t
TM0n count value
/2
/2
f
2
8
PRS
(f
(f
TI000/P00
(TI001/P05)
TI002/P31
(TI003/P131)
PRS
PRS
(f
Count clock
INTTM00n
PRS
2.
/2
/2
4
6
)
)
)
N = 0001H to FFFFH
n = 0 to 3
CR00n
Note 1
Note 1
Note 1
Frequencies and pin names without parentheses are for 16-bit timer/event counter 00 and 02, and
those in parentheses are for 16-bit timer/event counter 01 and 03.
OVF0n is set to 1 only when 16-bit timer capture/compare register 00n is set to FFFFH.
Note 1
Timer operation enabled
0000H
Noise
eliminator
f
PRS
N
CHAPTER 7 16-BIT TIMER/EVENT COUNTERS 00 TO 03
0001H
Figure 7-29. Interval Timer Configuration Diagram
t
Figure 7-30. Timing of Interval Timer Operation
User’s Manual U17554EJ4V0UD
N
Clear
0000H 0001H
16-bit timer capture/compare
register 00n (CR00n)
Interrupt acknowledged
N
16-bit timer counter 0n
(TM0n)
N
Clear
N
0000H 0001H
Interrupt acknowledged
OVF0n
Note 2
Clear
circuit
INTTM00n
N
N