PEF2256EV22NP Lantiq, PEF2256EV22NP Datasheet - Page 263

• Manufacturer Part Number: PEF2256EV22NP
• Manufacturer: Lantiq

Specifications of PEF2256EV22NP

• Number Of Transceivers: 1
• Screening Level: Industrial
• Mounting: Surface Mount
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Lead Free Status / RoHS Status: Supplier Unconfirmed

Framer Mode Register 3 (Read/Write)
Value after reset: 00
FMR3
XLD
XLU
CMI
SA6SY
Data Sheet
7
Transmit LLB Down Code
0 =
1 =
Transmit LLB UP Code
0 =
1 =
Select CMI Precoding
Only valid if CMI code (FMR0.XC(1:0) = 01) is selected. This bit
defines the CMI precoding and influences transmit and receive data.
0 =
1 =
Note: Before local loop is selected, HDB3 precoding has to be
Receive S
Only valid if multiframe format (FMR2.RFS(1:0) = 1x) is selected.
0 =
1 =
H
Normal operation.
A one in this bit position causes the transmitter to replace
normal transmit data with the LLB down (deactivate) Code
continuously until this bit is reset. The LLB down Code is
optionally overwritten by the time slot 0 depending on bit
LCR1.FLLB.
Normal operation.
A one in this bit position causes the transmitter to replace
normal transmit data with the LLB UP Code continuously until
this bit is reset. The LLB UP Code is overwritten by the time slot
0 depending on bit LCR1.FLLB. For proper operation bit
FMR3.XLD must be cleared.
disabled.
CMI with HDB3 precoding
CMI without HDB3 precoding
The detection of the predefined S
S
independently of the multiframe synchronous state.
The detection of the S
the multiframe.
a
6-bit detection according to ETS 300233) is done
XLD
a
6-Access Synchronous Mode
XLU
263
CMI
a
6-bit pattern is done synchronously to
SA6SY
a
6-bit pattern (refer to chapter
Rev. 1.1, 2005-06-13
EXTIW
PEF 2256 H/E
E1 Registers
0
FALC
(31)
®
56