Z51F3220FNX Datasheet, PDF (250/312 Pages) Zilog, Inc. – Z8051 Series 8-Bit Microcontrollers

Z51F3220
Product Specification
The process can be depicted as following figure when I2C operates in slave receiver mode.
LOST&
IDLE
S or Sr
SLA+W
0x95
0x1D
ACK ^N
Y
0x15
GCALL
DATA
Y
0x45
ACK
Y
N
0x44
0x20
STOP
P
IDLE
From master to slave /
Master command or Data Write
From slave to master
0xxx _{Value of Status Register}
ACK ^{Interrupt, SCL1 line is held low}
P Interrupt after stop command
LOST&
Arbitration lost as master and
addressed as slave
GCALL General Call Address
Figure 11.97 Formats and States in the Slave Receiver Mode (USI1)
PS029902-0212
PRELIMINARY
248