UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 283

• 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

(2) Port mode register 7 (PM7)
This register sets port 7 input/output in 1-bit units.
When using the P72/INTP6/PCL pin for clock output and the P73/INTP7/BUZ pin for buzzer output, set PM72,
PM73 and the output latch of P72, P73 to 0.
PM7 is set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation sets PM7 to FFH.
Address: FF27H
Symbol
PM7
CHAPTER 12 CLOCK OUTPUT/BUZZER OUTPUT CONTROLLER
PM7n
7
0
1
1
Figure 12-3. Format of Port Mode Register 7 (PM7)
After reset: FFH
Output mode (output buffer on)
Input mode (output buffer off)
PM76
6
User’s Manual U17554EJ4V0UD
PM75
5
P7n pin I/O mode selection (n = 0 to 6)
R/W
PM74
4
PM73
3
PM72
2
PM71
1
PM70
0
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