peb20560 Infineon Technologies Corporation, peb20560 Datasheet - Page 32

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

Semiconductor Group
Table 1-2 PCM Interface
Pin
No.
27
26
25
24
45
44
43
42
41
40
39
38
37
36
35
34
Note: The maximal input current on the following DOC input lines will not exceed 2.3 mA
at 5.5 V signal when the DOC is without power supply (lines connected with the
back plane):
PFS, PDC2, PDC4, PDC8, XCLK, REFCLK, RxD0 to RxD3, RxDB0, RxDB1,
CxDB0, CxDB1, HFSB0 and HFSB1.
(This is a protection for the case that a board with a DOC is plugged into the PCM
backplane and the DOC is not yet connected to the power supply pins.
Refer to Figure 6-1.)
Symbol
PFS
PDC2
PDC4
PDC8
RxD0
RxD1
RxD2
RxD3
TxD0
TxD1
TxD2
TxD3
TSC0
TSC1
TSC2
TSC3
In (I)
Out (O)
I/O
I/O
I/O
I/O
I
I
I
I
O
O
O
O
O
O
O
O
I
I
During
Reset
I
I
I
High
Impedance
“High”
1-12
Function
PCM-Interface Frames Synchronization
Clock/
Master Clock
PCM-Interface Data Clock / Master Clock
2.048 MHz
PCM-Interface Data Clock / Master Clock
4.096 MHz
PCM-Interface Data Clock / Master Clock
8.192 MHz
Receive PCM-Interface Data
Transmit PCM-Interface Data
Tri-state Control
Supplies a control signal for an external
driver.
These lines are “low” when the
corresponding TxD-outputs are valid.
PEB 20560
Overview
2003-08