PSF21150 INFINEON [Infineon Technologies AG], PSF21150 Datasheet - Page 29

• Manufacturer Part Number: PSF21150
• Description: IPAC-X ISDN PC ADAPTER CIRCUIT
• Manufacturer: INFINEON [Infineon Technologies AG]

Table 2
Pin No.
MQFP-64
TQFP-
64
Auxiliary Interface
Data Sheet
49
51
50
29
28
30
31
32
64
Symbol
BCL/
SCLK
DD
DU
SDS1
SDS2
AUX0
AUX1
AUX2
AUX3
IPAC-X Pin Definitions and Functions (cont’d)
Input (I)
Output (O)
Open Drain
(OD)
O
I/O (OD)
I/O (OD)
O
O
I/O (OD)
I/O (OD)
I/O (OD)
I/O (OD)
Function
Bit Clock/S-Clock
TE-Mode:
Bit clock output, identical to IOM-2 data rate (DCL/
2).
LT-T Mode:
1.536 MHz output synchronous to S-interface.
NT / LT-S Mode:
Bit clock output derived from the DCL input clock
divided by 2.
Data Downstream
IOM-2 data signal in downstream direction.
Data Upstream
IOM-2 data signal in upstream direction.
Serial Data Strobe 1
Programmable strobe signal for time slot and/or D-
channel indication on IOM-2.
Serial Data Strobe 2
Programmable strobe signal for time slot and/or D-
channel indication on IOM-2.
• TE-Mode:
Auxiliary Port 0 - 2 (input/output)
These pins are individually programmable as
general input/output. The state of the pin can be
read from (input) / written to (output) a register.
• LT-T/LT-S/NT Mode:
CH0-2 - IOM-2 Channel Select (input)
These pins select one of eight channels on the IOM-
2 interface.
Auxiliary Port 3 (input/output)
This pin is programmable as general input/output.
The state of the pin can be read from (input) / written
to (output) a register.
29
Pin Configuration
PSB 21150
PSF 21150
2000-07-21