PXB4221 Infineon Technologies AG, PXB4221 Datasheet - Page 26

• Manufacturer Part Number: PXB4221
• Description: IWE8 Interworking Element for 8 E1/T1 Lines
• Manufacturer: Infineon Technologies AG

2.2.1
Table 1
Pin No.
G17, C19,
A18, C14,
A12, B9,
A6, C5
F18, B20,
A17, B14,
B11, C9,
C7, B4
E19, C18,
C16, A14,
C11, D9,
B6, A3
E18, A19,
A16, B13,
A10, A8,
A5, B3
E20, D18,
D16, A15,
B12, A9,
B7, A4
D20, A20,
B16, C13,
B1, C2, D5,
C4
D19, B18,
C15, A13,
B10, B8,
D7, B2
Data Sheet
Generic Framer Interface
Symbol
FRCLK[7:0]
FRDAT[7:0]
FRMFB[7:0]
FRFRS[7:0]
FRLOS[7:0]
FTCKO[7:0]
FTDAT[7:0]
Generic Framer Interface (73 pins)
Input (I)
Output (O)
I
I
PDA
I
PUA
O
PUA
I
PDA
O/I
PDA
O
PUA
26
Function
Framer Receive Clock
Receive clock for the framer interface
Framer Receive Data
Receive data input of the framer interface
Framer Receive Multiframe Begin
Indication that a new multi-/superframe is
available on the receive side of the framer
interface
Framer Receive Frame Synchronization
Pulse
Indication that a new frame is available on
the receive side of the framer interface
Framer Receive Loss of Signalling
Indication that CAS bits are invalid, IWE8
will start CAS freezing
Framer Transmit Clock
Transmit clock for the framer interface.
• Recovered clock output from the ICRC
• Framer receive clock output from pin
• Output of the clock derived from RFCLK
• Input for an external clock recovery
Framer Transmit Data
Transmit data output of the framer interface
FRCLKN
device
PXB4219 / PXB4220 / PXB4221
Pin Descriptions
2002-05-06