User guide

DS2181A
041995 27/32
SERIAL PORT WRITE AC TIMING DIAGRAM Figure 28
t
CWH
t
CC
t
CH
t
R
t
F
t
CL
t
CCH
t
CDH
t
DC
SCLK
CS
SDI
NOTE:
1. Shaded regions indicate “don’t care” states of input data.
SERIAL PORT READ
1
AC TIMING Figure 29
CS
SCLK
SDO
t
CDZ
High Z
t
CDV
NOTE:
1. Serial port write must precede a port read to provide address information.