ez80190 ZiLOG Semiconductor, ez80190 Datasheet - Page 110

• Manufacturer Part Number: ez80190
• Description: Ez80190 Microprocessor
• Manufacturer: ZiLOG Semiconductor

PS006613-0306
Code
18h
20h
38h
68h
78h
B0h
Note: W = Write bit. The lsb is cleared to 0.
I
Addr+W transmitted,
ACK received
Addr+W transmitted,
ACK not received
Arbitration lost
Arbitration lost,
SLA+W received, ACK
transmitted
Arbitration lost,
General call addr
received, ACK
transmitted
Arbitration lost, SLA+R
received, ACK
transmitted
2
If 10-bit addressing is being used, then the status code is
part of a 10-bit address, plus the write bit, are successfully transmitted.
After this interrupt is serviced and the second part of the 10-bit address is trans-
mitted, the I2Cx_SR register contains one of the codes in
C State
Table 43. I
Microprocessor Response
For a 7-bit address: Write a
byte to DATA, clear IFLG
Or set STA, clear IFLG
Or set STP, clear IFLG
Or set STA & STP, clear IFLG Transmit STOP then
For a 10-bit address: write an
extended address byte to
DATA, clear IFLG
Same as code 18h
Clear IFLG
Or set STA, clear IFLG
Clear IFLG, ACK = 0
Or clear IFLG, ACK = 1
Same as code 68h
Write byte to DATA, clear
IFLG, clear ACK = 0
Or write byte to DATA, clear
IFLG, set ACK = 1
2
C Master Transmit Status Codes
PRELIMINARY
Next I
Transmit data byte,
receive ACK
Transmit repeated
START
Transmit STOP
START
Transmit extended
address byte
Same as code 18h
Return to the IDLE state
Transmit START when
bus is free
Receive data byte,
transmit NACK
Receive data byte,
transmit ACK
Same as code 68h
Transmit last byte,
receive ACK
Transmit data byte,
receive ACK
2
18h
C Action
Table
or
I
2
44.
20h
C Serial I/O Interface
after the first
96