peb20560 Infineon Technologies Corporation, peb20560 Datasheet - Page 155

• Manufacturer Part Number: peb20560
• Description: Dsp Oriented Pbx Controller Doc
• Manufacturer: Infineon Technologies Corporation

Table 2-26 PEDIU Registers Addresses in the DSP Address Space (cont’d)
Address
C10B
C10C
C10D
C10E
C10F
2.8.5
This section describes the way in which the PEDIU should receive and transmit data.
2.8.5.1
The mode field of UCR defines the following:
• The length of each frame in time-slots is defined by UCR:M.
• The internal structure of each time-slot can not be changed. In all modes each
Transmitted time-slot form the PEDIU into the OUT streams:
OUT stream <-- bit 7
Received time-slot by the PEDIU from the IN streams:
2.8.5.2
The PEDIU converts the received serial data into parallel data, and writes it into the
PEDIU RAM in the following manner:
• If the written data is a linear word which was generated by a-law decoding, this word
bit
Semiconductor Group
bit 7
(msb)
time-slot is constructed from sequential 8 bits, when their sequence is from msb to lsb.
The first bit of each transmitted or received time-slot is always bit 7, and the last is bit
0.
will be stored in the 13 MSBs. The 3 lsbs will be ‘0’.
H
H
H
H
H
15
bit 6
14
PEDIU Data Processing
PEDIU Serial Data Processing
PEDIU Parallel Data Processing
13
(msb)
bit 5
12
Use
read and write UPRTAR
read UPRTDR
reserved
reserved
reserved
11
a-law 13 bit signed data
bit 6
bit 4
10
bit 5
bit 3
9
2-109
8
bit 4
bit 2
7
6
bit 3
bit 1
Functional Block Description
5
bit 2
4
bit 0
(lsb)
3
bit 1
<---- IN stream
2
0
PEB 20560
1
0
bit 0
(lsb)
2003-08
0
0