NEC PD78058F(A) Manuale Utente

6

5

4

3

2

1

0

7

Symbol

CSIM2 CSIE2

0

0

0

0

CSIM

22

CSCK

0

FF72H              00H           R/W

Address     After Reset     R/W

CSCK

0

1

Serial Operating Mode Selection

UART mode

3-wire serial I/O mode

CSIM22

0

1

First Bit Specification

MSB

LSB

CSIE2

0

1

Operation Control in 3-wire Serial I/O Mode

Operation stopped

Operation enabled

Serial interface channel 2 is controlled by the following four registers.

• Serial operating mode register 2 (CSIM2)

• Asynchronous serial interface mode register (ASIM)

• Asynchronous serial interface status register (ASIS)

• Baud rate generator control register (BRGC)

This register is set when serial interface channel 2 is used in the 3-wire serial I/O mode.

CSIM2 is set with a 1-bit or 8-bit memory manipulation instruction.

RESET input sets CSIM2 to 00H.