peb2265 ETC-unknow, peb2265 Datasheet - Page 18

• Manufacturer Part Number: peb2265
• Description: Channel Codec Filter With Iom -2 Interface Iom -2 Sicofi -2
• Manufacturer: ETC-unknow

Semiconductor Group
3
With the appropriate commands, the IOM-2 – SICOFI-2 can be programmed and
verified very flexibly via the IOM-2 Interface monitor channel.
Data transfer to the IOM-2 – SICOFI-2 starts with a SICOFI-specific address byte (81
With the second byte one of 3 different types of commands (SOP, XOP and COP) is
selected. Each of those can be used as a write or read command. Due to the extended
IOM-2 – SICOFI-2 feature control facilities, SOP, COP and XOP commands contain
additional information (e.g. number of subsequent bytes) for programming (write) and
verifying (read) the IOM-2 – SICOFI-2 status.
A write command is followed by up to 8 bytes of data. The IOM-2 – SICOFI-2 responds
to a read command with its IOM-2 specific address and the requested information, that
is up to 8 bytes of data (see programming Procedure, page 18).
Attention: Each byte on the monitor channel, has to be sent twice at least, according to
the IOM-2 Monitor handshake procedure (For more information on IOM-2 specific
Monitor Channel Data Structure see appendix, page 64).
3.1
The 8-bit Monitor Bytes have to be interpreted as either commands or status information
stored in Configuration Registers or the Coefficient RAM. There are three different types
of IOM-2 – SICOFI-2 commands which are selected by bit 3 and 4 as shown below.
SOP
XOP
COP
Bit
Bit
Bit
X
7
7
7
STATUS OPERATION:
EXTENDED OPERATIO:
COEFFICIENT OPERATION:
Programming the IOM
Types of Monitor Bytes
6
6
6
5
5
5
®
-2 – SICOFI
4
1
4
1
4
0
18
IOM-2 – SICOFI-2 status
setting/monitoring
C/I channel configuration/evaluation
filter coefficient setting/monitoring
Programming the IOM
®
-2
3
0
3
1
3
2
2
2
®
1
1
1
-2 – SICOFI
PEB 2265
1997-07-01
0
0
0
®
H
-2
).