Figure 126), At8xc51snd1c – Rainbow Electronics AT89C51SND1C User Manual
Page 164
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164
AT8xC51SND1C
4109E–8051–06/03
Figure 126. Format and States in the Master Receiver Mode
A
Data
48h
A
SLA
08h
MR
MT
Successful reception
from a slave transmitter
Next transfer started with
a repeated start condition
Not acknowledge received
after the slave address
Arbitration lost in slave
address or data Byte
Arbitration lost and
addressed as slave
Data
A
From master to slave
From slave to master
Any number of data Bytes and their associated
acknowledge bits
This number (contained in SSSTA) corresponds
to a defined state of the TWI bus
S
R
40h
A
P
58h
SLA
S
R
W
A
P
10h
38h
A
continues
Other master
38h
A or A
continues
Other master
68h
A
continues
Other master
78h B0h
nnh
To corresponding
states in slave mode
Data
50h
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