Philips Semiconductors
Preliminary specification
80C51 8-bit microcontroller
8K/256 OTP, 8 channel 10 bit A/D, I2C, PWM,
capture/compare, high I/O, low voltage (2.7V–5.5V), low power
P87C552
RECEPTION OF THE OWN SLAVE ADDRESS
AND ONE OR MORE DATA BYTES
ALL ARE ACKNOWLEDGED.
S
SLA
W
A
DATA
A
DSALTAA
A
P or S
A0H
80H
80H
60H
LAST DATA BYTE RECEIVED IS
NOT ACKNOWLEDGED
P or S
A
88H
ARBITRATION LOST AS MST AND
ADDRESSED AS SLAVE
A
68H
RECEPTION OF THE GENERAL CALL ADDRESS
AND ONE OR MORE DATA BYTES
GENERAL
CALL
DATA
A
DATA
A
A
P or S
A0H
90H
90H
70H
LAST DATA BYTE IS NOT ACKNOWLEDGED
P or S
A
98H
ARBITRATION LOST AS MST AND ADDRESSED AS SLAVE BY GENERAL CALL
A
78H
FROM MASTER TO SLAVE
FROM SLAVE TO MASTER
Data
A
ANY NUMBER OF DATA BYTES AND THEIR ASSOCIATED ACKNOWLEDGE BITS
2
THIS NUMBER (CONTAINED IN S1STA) CORRESPONDS TO A DEFINED STATE OF THE I C BUS. SEE TABLE 8.
n
SU00973
Figure 41. Format and States in the Slave Receiver Mode
41
1999 Mar 30
NXP [ NXP ]
