pef2256e Infineon Technologies Corporation, pef2256e Datasheet - Page 320

• Manufacturer Part Number: pef2256e
• Description: E1/t1/j1 Framer And Line Interface Component For Long- And Short-haul Applications
• Manufacturer: Infineon Technologies Corporation

Signaling Status Register (Read)
SIS
XDOV
XFW
XREP
RLI
CEC
SFS
User’s Manual
Hardware Description
XDOV
7
Transmit Data Overflow - HDLC Channel 1
More than 32 bytes have been written to the XFIFO.
This bit is reset
– by a transmitter reset command XRES
– when all bytes in the accessible half of the XFIFO have been moved
Transmit FIFO Write Enable - HDLC Channel 1
Data can be written to the XFIFO.
Transmission Repeat - HDLC Channel 1
Status indication of CMDR.XREP.
Receive Line Inactive - HDLC Channel 1
Neither flags as interframe time fill nor frames are received through
the signaling time slot.
Command Executing - HDLC Channel 1
0 =
1 =
Note: CEC is active for about 2.5 periods of the current system data
Status Freeze Signaling
0 =
1 =
XFW
in the inaccessible half.
rate.
Freeze signaling status inactive.
Freeze signaling status active
No command is currently executed, the CMDR register can be
written to.
A command (written previously to CMDR) is currently executed,
no further command can be temporarily written in CMDR
register.
XREP
320
RLI
CEC
SFS
DS1.1, 2003-10-23
PEF 2256 H/E
E1 Registers
0
FALC
(64)
®
56