psb21391 Infineon Technologies Corporation, psb21391 Datasheet - Page 32

• Manufacturer Part Number: psb21391
• Description: Siemens Codec With Upn Transceiver
• Manufacturer: Infineon Technologies Corporation

Data Sheet
2.1.1.1
The principle structure of a read/write access to the SCOUT registers via the serial
control interface is shown in figure 11.
Figure 11
Serial Command Structure
A new programming sequence starts with the transfer of a header byte. The header byte
specifies different programming sequences allowing a flexible and optimized access to
the individual functional blocks of the SCOUT.
The possible sequences are listed in table 3 and are described afterwards.
Table 3
Header Byte Code
Header
Byte
4C
write sequence:
read sequence:
00
08
40
44
48
H
H
H
H
H
H
SDR
SDR
SDX
Cmd-Data-Data-Data ARCOFI compatible,
Adr-Data-Adr-Data
Programming Sequences
7
7
Sequence
header
header
non-interleaved
ARCOFI compatible,
interleaved
non-interleaved
interleaved
0 7
0 7
write
read
0
1
Sequence Type
6
6
address (command)
address (command)
22
byte 2
byte 2
0
0
7
7
Codec reg./CRAM
(indirect)
Address Range 00
CRAM (80
Address Range 00
CRAM (80
write data
read data
byte 3
byte 3
Access to
H
H
-FF
-FF
PSB 21391
PSB 21393
H
H
)
)
Interfaces
2001-03-07
0
0
H
H
-6F
-6F
H
H