UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 248

• 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

(3) Port mode register 1 (PM1)
248
This register sets port 1 input/output in 1-bit units.
When using the P15/TOH0 and P16/TOH1/INTP5 pins for timer output, clear PM15 and PM16 and the output
latches of P15 and P16 to 0.
PM1 can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation sets this register to FFH.
Address: FF21H
Symbol
PM1
PM17
PM1n
7
0
1
After reset: FFH
Output mode (output buffer on)
Input mode (output buffer off)
PM16
6
Figure 9-8. Format of Port Mode Register 1 (PM1)
PM15
CHAPTER 9 8-BIT TIMERS H0 AND H1
5
R/W
P1n pin I/O mode selection (n = 0 to 7)
User’s Manual U17554EJ4V0UD
PM14
4
PM13
3
PM12
2
PM11
1
PM10
0