UPD78F9177 Datasheet, PDF (39/56 Pages) NEC – 8-BIT SINGLE-CHIP MICROCONTROLLER

Serial Transfer Timing
3-wire serial I/O mode:
SCK20
SI20
SO20
µPD78F9177, 78F9177Y
tKLm
tKCYm
tKHm
tKSOm
tSIKm
tKSIm
Input data
Output data
Remark m = 1, 2
3-wire serial I/O mode (when using SS20):
SS20
SO20
UART mode (external clock input):
ASCK20
tKAS2
Output data
tKDS2
tKCY3
tKL3
tKH3
tR
tF
Data Sheet U14022EJ1V0DS00
39