PXB 4221 E V3.4-G Infineon Technologies, PXB 4221 E V3.4-G Datasheet - Page 82

• Manufacturer Part Number: PXB 4221 E V3.4-G
• Description: IC ATM/IP INTERWORKING BGA-256
• Manufacturer: Infineon Technologies

Specifications of PXB 4221 E V3.4-G

• Applications: *
• Mounting Type: Surface Mount
• Package / Case: 256-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: PXB4221EV3.4X; PXB4221EV34GXP; SP000017875

4.8.3
The framer transmit clock, data, framesync and multi-framesync signals can be looped
from the Framer Transmit Interface to the Framer Receive Interface per port. This
feature can be enabled by setting the “p_slp” bit in the Port Configuration Register (pcfN,
see
The loopback can be made transparent or non-transparent by setting the “tslp” bit in the
Loopback Control Register (lpbc,
transmitted data is also visible on FTDAT. Otherwise, if non-transparent, all 1s are
transmitted on FTDAT.
Data Sheet
Chapter
Serial Loop
7.1).
Chapter
7.11). If the loopback is made transparent, all
82
PXB 4219E, PXB 4220E, PXB 4221E
Operational Description
IWE8, V3.4
2003-01-20