PXB4219E Datasheet, PDF (24/290 Pages) Infineon Technologies AG – Interworking Element for 8 E1/T1 Lines

IWE8, V3.4
PXB 4219E, PXB 4220E, PXB 4221E
Pin Descriptions
Table 1
Generic Framer Interface (73 pins) (cont’d)
Pin No. Symbol
Input (I) Function
Output (O)
C4, D5, C2,
B1, C13,
B16, A20,
D20
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
B2, D7, B8,
B10, A13,
C15, B18,
D19
FTDAT[7:0]
O
PUA
Framer Transmit Data
Transmit data output of the framer interface
A2, C6, C8,
C10, D12,
D14, B17,
C20
FTMFS[7:0]
O
PUA
Framer Transmit Multiframe
Synchronization
Indication that a new multi-/superframe is
available on the transmit side of the framer
interface
C3, B5, A7,
D10, C12,
B15, C17,
E17
FTFRS[7:0]
O
PUA
Framer Transmit Frame Synchronization
Pulse
Indication that a new frame is available on
the transmit side of the framer interface
L1
RFCLK
I
Reference Clock
SYM and EC mode: Central framer interface
clock for all framer ports
FAM and GIM: Optional SRTS/ACM
reference or emergency clock for the framer
receive interface in case of clock failure
Data Sheet
24
2003-01-20