284
µ
PD78214 Sub-Series
Table 10-2 Signals in SBI Mode (1/3)
SCK
SB0
H
H
SCK
SB0
Rising edge of SB0
while SCK is set to 1
Falling edge of SB0
while SCK is set to 1
Bus release signal
(REL)
Command signal
(CMD)
Output
device Definition
RELT is set.
CMDT is set.
Output condition
RELD is set.
CMDD is clear-
ed.
CMDD is set.
Influence on flag Description
Following this signal,
the CMD signal is
output to indicate that
the transmission data
is an address.
(1)
If this signal is output
after the REL signal,
the transmission data
is an address.
(2)
If this signal is output
without the REL signal,
the transmission data
is a command.
Signal name Timing chart
Master
Master