Commands; Data - NEC PD78052 User Manual

CHAPTER 16 SERIAL INTERFACE CHANNEL 0 ( PD78054 Subseries)
(d) Command and data
The master device transmits commands to, and transmits/receives data to/from the slave device selected
by address transmission.
SCK0
SB0 (SB1)
SCK0
SB0 (SB1)
8-bit data following a command signal is defined as "command" data. 8-bit data without command signal
is defined as "data". Command and data operation procedures are allowed to determine by user according
to communications specifications.
312
Figure 16-16. Commands
1 2 3
C7 C6 C5
Command Signal
Figure 16-17. Data
1 2 3
D7 D6 D5
4 5 6 7 8
C4 C3 C2 C1 C0
Command
4 5 6 7 8
D4 D3 D2 D1 D0

Data