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Rev. 1.0, 07/01, page 317 of 372
t
Scyc
t
TXD
t
RXS
t
RXH
V
OH
V or V
IH OH
V or V
IL OL
*
*
*
V
OL
*
SCK3
TXD
(transmit data)
RXD
(receive data)
Note: * Output timing reference levels
Output high:
Output low:
Load conditions are shown in figure 20-7.
V = 2.0 V
V = 0.8 V
OH
OL
Figure 20-6 SCI Synchronous Mode Input/Output Timing
20.5 Output Load Circuit
V
CC
2.4 kΩ
12 kΩ30 pF
LSI output pin
Figure 20-7 Output Load Condition