UPD78F0537DGA(T)-9EV-A NEC, UPD78F0537DGA(T)-9EV-A Datasheet - Page 370

• 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) Input switch control register (ISC)
(8) Port mode register 1 (PM1)
370
The input switch control register (ISC) is used to receive a status signal transmitted from the master during LIN
(Local Interconnect Network) reception.
The signal input from the P14/R
are set to 1.
This register can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation sets this register to 00H.
This register sets port 1 input/output in 1-bit units.
When using the P13/T
When using the P14/R
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: FF4FH
Address: FF21H
Symbol
PM1
Symbol
ISC
PM17
PM1n
7
0
1
ISC1
ISC0
7
0
0
1
0
1
After reset: 00H
After reset: FFH
Output mode (output buffer on)
Input mode (output buffer off)
X
Figure 15-11. Format of Input Switch Control Register (ISC)
X
D6 pin for serial interface data output, clear PM13 to 0 and set the output latch of P13 to 1.
PM16
D6 pin for serial interface data input, set PM14 to 1. The output latch of P14 at this time
TI000 (P00)
R
INTP0 (P120)
R
6
Figure 15-12. Format of Port Mode Register 1 (PM1)
X
X
D6 (P14)
D6 (P14)
6
0
X
D6 pin is selected as the input source of INTP0 and TI000 when ISC0 and ISC1
CHAPTER 15 SERIAL INTERFACE UART6
PM15
R/W
5
R/W
P1n pin I/O mode selection (n = 0 to 7)
User’s Manual U17260EJ6V0UD
5
0
PM14
4
INTP0 input source selection
4
0
TI000 input source selection
PM13
3
PM12
3
0
2
PM11
2
0
1
PM10
ISC1
0
1
ISC0
0