PEB3265 Infineon Technologies Corporation, PEB3265 Datasheet - Page 143

• Manufacturer Part Number: PEB3265
• Description: (PEB326x / PEB426x) Dual Channel Slicofi-2 / Slic Duslic
• Manufacturer: Infineon Technologies Corporation

Preliminary
5.1.3
The microcontroller interface consists of four lines: CS, DCLK, DIN and DOUT.
CS
DCLK
DIN
DOUT
There are two different command types. Reset commands have just one byte. Read/
write commands have two command bytes with the address offset information located in
the second byte.
A write command consists of two command bytes and the following data bytes. The first
command byte determines whether the command is read or write, how the command
field is to be used, and which DuSLIC channel (A or B) is written. The second command
byte contains the address offset.
A read command consists of two command bytes written to DIN. After the second
command byte is applied to DIN, a dump-byte consisting of ‘1’s is written to DOUT. Data
transfer starts with the first byte following the ‘dump-byte’.
Figure 60
1)
Data Sheet
write command
write command
n Data Bytes
Single Byte
for n data bytes and single byte command
Serial Microcontroller Interface
DCLK
DIN
DIN
CS
CS
Serial Microcontroller Interface Write Access
A synchronization signal starting a read or write access to SLICOFI-2x.
A clock signal (up to 8.192 MHz) supplied to SLICOFI-2x.
Data input carries data from the master device to the SLICOFI-2x.
Data output carries data from SLICOFI-2x to a master device.
Comm 1st
Comm 1st
Comm 2nd
143
Data Byte 1
Data
Data
1)
Data Byte n
ezm14057.emf
Data
Interfaces
2000-07-14
DuSLIC