Epson S1C17001 Technical Manual page 267

2
20 I C
Communication start
Register setting
PCLK
T16 Ch.2 output
SCL (input)
SCL (output)
SDA (input)
SDA (output)
STRT
STP
TXE
RXE
TBUSY
RBUSY
RBRDY
RTACK
Shift register
RTDT[7:0]
Interrupt
258
Interrupt occurred
Slave address transmission
A6 A5 A0
valid shift shift
A[6:0] + DIR
Figure 20.5.9: I
Transmit data, TXE resetting
ACK receipt
Wait
Fixed at 0
ACK
DIR = 0
STRT = 0
STP = 0
TXE = 0
RXE = 0
shift
2
C timing chart 5 (Wait)
EPSON
Transmission start
Interrupt occurred
Data transmission
D7 D6 D5
(ACK receipt)
valid shift shift
D[7:0]
S1C17001 TECHNICAL MANUAL