R8C/1A Group, R8C/1B Group
19. Electrical Characteristics
Rev.1.30
Dec 08, 2006
Page 285 of 315
REJ09B0252-0130
Figure 19.5
I/O Timing of Clock Synchronous Serial I/O with Chip Select (Slave)
V
IH
or V
OH
V
IH
or V
OH
SCS (input)
SSCK (input)
(CPOS = 1)
SSCK (input)
(CPOS = 0)
SSO (input)
SSI (output)
4-Wire Bus Communication Mode, Slave, CPHS = 1
V
IH
or V
OH
V
IH
or V
OH
t
HI
t
LO
t
HI
t
FALL
t
RISE
t
LO
t
SUCYC
t
H
t
SU
SCS (input)
SSCK (input)
(CPOS = 1)
SSCK (input)
(CPOS = 0)
SSO (input)
SSI (output)
4-Wire Bus Communication Mode, Slave, CPHS = 0
t
OD
t
LEAD
t
SA
t
LAG
t
OR
t
HI
t
LO
t
HI
t
FALL
t
RISE
t
LO
t
SUCYC
t
H
t
SU
t
OD
t
LEAD
t
SA
t
LAG
t
OR
CPHS, CPOS: Bits in SSMR register