PXB4219 Datasheet, PDF (26/290 Pages) Infineon Technologies AG – IWE8 Interworking Element for 8 E1/T1 Lines

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