UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 190

• 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

(5) Port mode register 0 (PM0)
(6) Port mode register 3 (PM3)
190
This register sets port 0 input/output in 1-bit units.
When using the P01/TO00/TI010 and P06/TO01/TI011 pins for timer output, set PM01 and PM06 and the output
latch of P01 and P06 to 0.
When using the P01/TO00/TI010 and P06/TO01/TI011 pins for timer input, set PM01 and PM06 to 1. At this time,
the output latch of P01 and P06 may be 0 or 1.
PM0 can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation sets PM0 to FFH.
This register sets port 3 input/output in 1-bit units.
When using the P32/TO02/TI012/INTP3 pin for timer output, set PM32 and the output latch of P32 to 0.
When using the P31/TI002/INTP2 and P32/TI012/TO02/INTP3 pins for timer input, set PM31 and PM32 to 1. At
this time, the output latch of P31 and P32 may be 0 or 1.
PM3 can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation sets PM3 to FFH.
Address: FF20H
Symbol
PM0
Address: FF23H
Symbol
PM3
PM0n
PM3n
7
1
0
1
7
1
0
1
After reset: FFH
After reset: FFH
Output mode (Output buffer on)
Input mode (Output buffer off)
Output mode (Output buffer on)
Input mode (Output buffer off)
CHAPTER 7 16-BIT TIMER/EVENT COUNTERS 00 TO 03
Figure 7-25. Format of Port Mode Register 0 (PM0)
Figure 7-26. Format of Port Mode Register 3 (PM3)
PM06
6
6
1
R/W
R/W
PM05
User’s Manual U17554EJ4V0UD
5
5
1
P0n pin I/O mode selection (n = 0, 1, 5, 6)
P3n pin I/O mode selection (n = 0 to 3)
4
1
4
1
PM33
3
1
3
PM32
2
1
2
PM01
PM31
1
1
PM00
PM30
0
0