ML51/ML54/ML56
Sep. 01, 2020
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ML51/M
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Series
Tec
hnical Reference
Manual
SBUF
– Serial Port 0 Data Buffer
Register
SFR Address
Reset Value
SBUF
99H, Page 0
0000_0000 b
7
6
5
4
3
2
1
0
SBUF[7:0]
R/W
Bit
Name
Description
[7:0]
SBUF[7:0]
Serial Port 0 Data Buffer
This byte actually consists two separate registers. One is the receiving resister, and the
other is the transmitting buffer. When data is moved to SBUF, it goes to the transmitting
buffer and is shifted for serial transmission. When data is moved from SBUF, it comes from
the receiving register.
The transmission is initiated through giving data to SBUF.