UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 334

• 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

(8) Port mode register 1 (PM1)
334
This register sets port 1 input/output in 1-bit units.
When using the P13/TxD60 and P10/SCK10/TxD61 pins for serial interface data output, clear PM13 and PM10 to
0 and set the output latch of P13 and P10 to 1.
When using the P14/RxD60 and P11/SI10/RxD61 in for serial interface data input, set PM14 and PM11 to 1. The
output latch of P14 and P11 at this time may be 0 or 1.
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
CHAPTER 14 SERIAL INTERFACES UART60 AND UART61
6
Figure 14-20. Format of Port Mode Register 1 (PM1)
PM15
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