peb20560 Infineon Technologies Corporation, peb20560 Datasheet - Page 420

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

9.3.2
Figure 9-5
Semiconductor Group
Note : port relates to internal ELIC ports
MAAR
MAAR
MAAR
CSCR
MAAR
MAAR
MAAR
MAAR
MADR
MAAR
Writing 8 Bit CFI Idle Codes by the mP :
Reading back a previously written 8
Reading PCM Data switched to CFI:
Tristating a CFI Output TS:
CFI + PCM Mode 0
CFI Port, TS
CFI Port, TS
CFI Port, TS
CFI Port, TS
PCM Port, TS
PCM Port, TS
CFI Port, TS
Switching of 8 Bit Channels:
Switching of Subchannels:
X
0 .
0
0
0 .
0 .
0 .
0 .
.
3
CFI Bit Position
Switching of PCM Time-Slots to the CFI Interface (Data Downstream)
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CFI TS
Switching of PCM Time-Slots to the CFI Interface (working sheet)
2
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.
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TS
1
Port
ELIC,
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Output
Disable
0
0 1
1 0
1 1
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R
0
EPIC
0
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.
= 7 ... 4 or 7, 6 (default for D channel)
=
=
=
CFI Port
MADR
MAAR
R
3 ... 0 or 5, 4
7 ... 4 or 3, 2
3 ... 0 or 1, 0
...
...
...
...
MADR
MADR
MADR
MADR
MADR
Loop
PCM Mode 1
X .
Bit CFI Idle Codes by the mP :
Value of Idle Code (W)
Value of Idle Code (R)
Value (R)
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.
PCM Port, TS
PCM Port, TS
1
0
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Loop
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TS
Port
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Data Memory
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9-9
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Direct
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CFI Mode 1
X
µP Access
.
MACR
MACR
MACR
MACR
MACR
MACR
MACR
.
.
Switching Command
Switching Command
Write Value to CM Data
Select
Read Value to CM Data
Read Data Memory:
Select µP Access
0 1 1 1 0 0 0 1
0
0
0 1 1 1 1 0 0 1
0 1 1 1 0 0 0 0
1 1 0 0 1 0 0 0
1 .
.
TS
1
1
0
0 0 1 1 =
0
0
0
0
0
PCM TS
.
.
.
.
For MADR/MAAR setings see loewr box
For MADR/MAAR setings see loewr box
For MAAR setings see lower box
µP Access
0
0
1
1
1
1
1
1
Port
.
.
1
1
0
1
1
1
0 1 =
0
.
.
0
0 0 1 0 =
0 1
0 1
0 1
0 1
0
0
0
1
1
1
.
. 0 0 0
=
=
=
=
=
MADR
MAAR
0
0
.
7 ... 0
7 ... 4
3 ... 0
7, 6
5, 4
3, 2
1, 0
CFI + PCM Mode 2
0
0 0 =
0
1
1 1 = 7, 6
1 0 =
.
X .
1
1
1
.
=
=
Desired
TS Width
and Bit
Position
7 ... 4
3 ... 0
5, 4
3, 2
1, 0
...
...
.
.
TS
PEB 20560
Switched
TS Width
and PCM
Bit Position
.
.
Appendix
ITD08110
.
2003-08
.