Samsung S3C9228/P9228, 8-Bit CMOS Microcontroller user manual Serial I/O Timing Diagram SIO

SERIAL I/O INTERFACE S3C9228/P9228

SERIAL I/O TIMING DIAGRAM (SIO)

SCK
SI	DI7	DI6	DI5	DI4	DI3	DI2	DI1	DI0
SO	DO7	DO6	DO5	DO4	DO3	DO2	DO1	DO0
SIO INT								Transmit
								Complete
	Set SIOCON.3

Figure 15-4. Serial I/O Timing in Transmit/Receive Mode (Tx at falling, SIOCON.4 = 0)

SCK
SI	DI7	DI6	DI5	DI4	DI3	DI2	DI1	DI0
SO	DO7	DO6	DO5	DO4	DO3	DO2	DO1	DO0
SIO INT								Transmit
								Complete
	Set SIOCON.3

Figure 15-5. Serial I/O Timing in Transmit/Receive Mode (Tx at rising, SIOCON.4 = 1)

15-4