User's Manual

INTERNAL SPECIFICATIONS
109
Figure 4-30 Serial port (mode 0) timing and corresponding basic MSM80C154S/
MSM83C154S timing
XTAL1 ALE
OUTPUT:
READ RXD
INPUT:
TXD (SHIFT CLOCK) RXD (DATA OUTPUT)
S1 S2 S3 S4 S5 S6 S1 S2 S3 S4 S5 S6
TXD (SHIFT CLOCK)