MSM80C154S/83C154S/85C154HVS
114
Figure 4-32 Serial port (mode 1) timing chart
D1
WRITE TO SBUF
TXD
TERMINATE TRANSMISSION
TX CLOCK
TI
D2 D3 D4 D5 D6
RX COUNTER RUN
RXD SAMPLE CLOCK
LOAD SBUF
RXD
SHIFT-IN CLOCK
RI or SERR SET
TERMINATE RECEPTION
STOP BIT
STOP BIT
M1·S3
D7D0
D1 D2 D3 D4 D5 D6 D7D0
M1·S3
START BIT
START BIT
