Fujitsu FR81S User Manual
CHAPTER 40: MULTI-FUNCTION SERIAL INTERFACE
8. Operation of I2C
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER : MULTI-FUNCTION SERIAL INTERFACE
FUJITSU SEMICONDUCTOR CONFIDENTIAL
341
Figure 8-12 Acknowledge (FIFO Disable, IBSR:RSA="1", and the Response Is ACK)
“L” by the INT bit Data
SCL
SDA R/W ACK
“0”writing
INT bit
RACK bit
FBT bit
RSA bit
RDRF bit
RDR register reading
Figure 8-13 Acknowledge (FIFO Disable, IBSR:RSA="1", and the Response Is NACK)
“L” by the INT bit
SCL
SDA R/W NACK
“0”writing
INT bit
MSS bit
RACK bit
FBT bit
RSA bit
RDRF bit
Stop condition
RDR register reading
MB91520 Series
MN705-00010-1v0-E
1654