Silicon Laboratories C8051F347 - Manual (Page 204)

C8051F340/1/2/3/4/5/6/7/8/9/A/B/C/D
204 Rev. 1.3
Slave T
ransmitter
0100
0 0 0
A slave byte was transmitted;
NACK received. No action required (expect-
ing STOP condition).
0 0 X
0 0 1
A slave byte was transmitted;
ACK received. Load SMB0DAT with next
data byte to transmit.
0 0 X
0 1 X
A Slave byte was transmitted;
error detected. No action required (expect-
ing Master to end transfer).
0 0 X
0101 0 X X
An illegal STOP or bus error was
detected while a Slave Transmis-
sion was in progress.
Clear STO. 0 0 X
Slave Receiver
0010
1 0 X
A slave address was received;
ACK requested.
Acknowledge received
address.
0 0 1
Do not acknowledge
received address.
0 0 0
1 1 X
Lost arbitration as master; slave
address received; ACK
requested.
Acknowledge received
address.
0 0 1
Do not acknowledge
received address.
0 0 0
Reschedule failed transfer;
do not acknowledge received
address.
1 0 0
0010 0 1 X
Lost arbitration while attempting a
repeated START. Abort failed transfer. 0 0 X
Reschedule failed transfer. 1 0 X
0001
1 1 X
Lost arbitration while attempting a
STOP. No action required (transfer
complete/aborted).
0 0 0
0 0 X
A STOP was detected while
addressed as a Slave Transmitter
or Slave Receiver.
Clear STO. 0 0 X
0 1 X
Lost arbitration due to a detected
STOP. Abort transfer. 0 0 X
Reschedule failed transfer. 1 0 X
0000
1 0 X
A slave byte was received; ACK
requested.
Acknowledge received byte;
Read SMB0DAT.
0 0 1
Do not acknowledge
received byte.
0 0 0
1 1 X
Lost arbitration while transmitting
a data byte as master. Abort failed transfer. 0 0 0
Reschedule failed transfer. 1 0 0
Table 17.4. SMBus Status Decoding (Continued)
M
ode
Values Read
Current SMbus State Typical Response Options
Values
Written
St
a
tu
s
Ve
c
to
r
A
CKR
Q
A
RBLOS
T
AC
K
ST
A
ST
o
AC
K