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Handshake Solutions
HT80C51 User Manual
Peripheral Modules – I2C Interface (SIO1)
Page 64 of 132
© Philips Electronics N.V. 2005
S
SLA
R
A
A
DATA
DATA
B8H
A8H
RECEPTION OF THE OWN SLAVE
ADDRESS AND ONE OR MORE
DATA BYTES ALL ARE
ACKNOWLEDGED
A
DATA
n
FROM MASTER TO SLAVE
FROM SLAVE TO MASTER
ANY NUMBER OF DATA BYTES AND THEIR ASSOCIATED ACKNOWLEDGE BITS
THIS NUMBER(CONTAINED IN S1STA) CORRESPONDS TO A DEFINED STATE OF THE I2C BUS: SEE TABLE 7
P or S
C0H
A
A
B0H
A
C8H
P or S
All "1"s
ARBITRATION LOST AS MST
AND ADDRESSED AS SLAVE
LAST DATA BYTE TRANSMITTED.
SWITCHED TO NOT ADDRESSED
SLAVE (AA BIT IN S1CON= "0")
[Figure 24] Format and States of the Slave Transmitter mode