UPD78F0537DGA(T)-9EV-A NEC, UPD78F0537DGA(T)-9EV-A Datasheet - Page 433

• Manufacturer Part Number: UPD78F0537DGA(T)-9EV-A
• Description: 8BIT MCU, 128K FLASH, 7KB RAM, SMD
• Manufacturer: NEC

Specifications of UPD78F0537DGA(T)-9EV-A

• Controller Family/series: UPD78
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 8
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

(7) Port mode register 6 (PM6)
This register sets the input/output of port 6 in 1-bit units.
When using the P60/SCL0 pin as clock I/O and the P61/SDA0 pin as serial data I/O, clear PM60 and PM61,
and the output latches of P60 and P61 to 0.
Set IICE0 (bit 7 of IIC control register 0 (IICC0)) to 1 before setting the output mode because the P60/SCL0
and P61/SDA0 pins output a low level (fixed) when IICE0 is 0.
PM6 is set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation sets PM6 to FFH.
Symbol
Address: FF26H
PM6
PM6n
7
1
0
1
After reset: FFH
Output mode (output buffer on)
Input mode (output buffer off)
Figure 17-10. Format of Port Mode Register 6 (PM6)
6
1
CHAPTER 17 SERIAL INTERFACE IIC0
1
5
User’s Manual U17260EJ6V0UD
R/W
P6n pin I/O mode selection (n = 0 to 3)
1
4
PM63
3
PM62
2
PM61
1
PM60
0
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