PXB4221 Infineon Technologies AG, PXB4221 Datasheet - Page 30

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

2.2.3
Table 3
Pin No.
Y10
L20
M1, W5,
Y5
2.2.4
Table 4
Pin No.
Y18
Y20
W20
T17
T20
Data Sheet
IMA Interface
Clock Recovery Interface
Symbol
ATBTC
UNCHEC
PN[2:0]
Symbol
SDI
SDOD
SDOR
SSP
SCLK
IMA Interface
Clock Recovery Interface
Input (I)
Output (O)
O
Tri
O
Tri
O
Tri
Input (I)
Output (O)
I
O
Tri
O
Tri
O
Tri
O
Tri
30
Function
ATM Transmit Buffer Threshold
Crossing
Indicates if the difference between the write
and read pointer of the mapping buffer
became smaller than a SW selectable
threshold
Uncorrectable HEC Error
Indicates if a cell has been discarded due to
an uncorrectable HEC error
Port Number
Indicates the port number where the cell
causing ATBT or UNCHEC being asserted
came from
Function
Serial Data Input
Clock recovery frame input.
Serial Data Output Data
Clock recovery frame output
Serial Data Output Reset
Clock recovery reset frame output
Serial Synchronization Pulse
Frame synchronization pulse output
Serial Clock
Clock output of the clock recovery interface.
Runs at the same frequency than the
CLOCK input
PXB4219 / PXB4220 / PXB4221
Pin Descriptions
2002-05-06