CS98100 Cirrus Logic, Inc., CS98100 Datasheet - Page 46

• Manufacturer Part Number: CS98100
• Description: DVD Video Processor With Progressive Scan
• Manufacturer: Cirrus Logic, Inc.

6.2
There are two 2-wire serial controllers, which sup-
port industry standard protocols. One controller is
a combination master/slave, and is typically used
for debug (slave), or to control a small non-volatile
memory (master). The slave chip select address is
programmable and defaults to a 7-bit value of
0x1A. The second 2-wire controller is a dedicated
master and can be used for controlling certain DVD
46
Serial Interface
139
140
142
143
Pin
119
117
118
115
Signal Name
MS_SDA1
MS_SCL1
SER_CLK
SER_DO
M_SDA2
SER_CS
M_SCL2
SER_DI
Table 17. Serial Interface Pin Assignments
Type
B
B
B
B
B
B
B
B
Clock for 2-wire serial port #1 (master/slave port)
Data for 2-wire serial port #1 (master/slave port)
Clock for 2-wire serial port #2 (master)
Data for 2-wire serial port #2 (master)
Clock for 4-wire serial port (output for master mode, input
for slave mode)
Output data for 4-wire serial port – may function as bi-
directional data in 3-wire mode.
Input data for 4-wire serial port
Chip select for 4-wire serial port (output for master mode,
input for slave mode). Can also be used as bi-directional
ready line.
devices. A third serial controller in the device sup-
ports industry standard 3-wire and 4-wire proto-
cols. In master mode, this interface can control a
front panel or a small non-volatile memory. In
slave mode, it can operate under control of an ex-
ternal processor, for example, in a combination
unit.
Description
CS98100