CHAPTER 12 SERIAL INTERFACE 20
(b) Asynchronous serial interface mode register 20 (ASIM20)
ASIM20 is set with a 1-bit or 8-bit memory manipulation instruction.
RESET input sets ASIM20 to 00H.
Symbol
ASIM20
<7>
<6>
5
4
3
2
1
0
0
0
Address
FF70H
After reset
00H
R/W
R/W
TXE20
RXE20
PS201
PS200
CL20
SL20
TXE20
Transmit operation control
Receive operation control
0
1
Transmit operation stopped
Transmit operation enabled
RXE20
0
1
Receive operation stopped
Receive operation enabled
Caution Bits 0 and 1 must be set to 0.
User’s Manual U15075EJ1V0UM00
223
NEC [ NEC ]
