MC92314 Datasheet, PDF (50/100 Pages) Motorola, Inc – DVB-T Single Chip Demodulator Application Note

Freescale Semiconductor, Inc.
DVB-T Demodulator Interfaces
Slave1
VDD
Rp
SDA
VDD
Rp
SCL
Master
tion ^Slave2
inary ^{Informa Figure 4-1. Usual I2C Environment}
lim ^{The protocol consists of a sequence of high and low states and additionally of certain edge}
dependencies for synchronisation. If more than one master is available a certain arbitration
re scheme is also defined. Arbitration is not object of this document because the MC92309 works
P ^{only in slave mode. Each transmission sequence is synchronised by a start condition and}
finished by a stop condition. The data will be transmitted byte wise. Each transmitted byte will be
acknowledged by the receiving slave module.
4.2.1 I²C Functionality
4.2.1.1 Start Condition
Whenever SDA goes from high to low while SCL is constant high a data transfer sequence is
started.
SDA
SCL
“s”
MOTOROLA
4-2
Single Chip DVB-T Demodulator - Rev. 1.3 (11/30/98)
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