pef2256e Infineon Technologies Corporation, pef2256e Datasheet - Page 303

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

Version Status Register (Read)
VSTR
VN(7:0)
Receive Equalizer Status (Read)
RES
EV(1:0)
RES(4:0)
User’s Manual
Hardware Description
VN7
EV1
7
7
Version Number of Chip
00
10 =Version 2.1
Equalizer Status Valid
These bits informs the user about the current state of the receive
equalization network.
00 = Equalizer status not valid, still adapting
01 = Equalizer status valid
10 = Equalizer status not valid
11 = Equalizer status valid but high noise floor
Receive Equalizer Status
The current line attenuation status in steps of about 1.7 dB are
displayed in these bits. Only valid if bits EV(1:0) = 01. Accuracy: ± 2
digits, based on temperature influence and noise amplitude
variations.
00000 = Minimum attenuation: 0 dB
...
11001 = Maximum attenuation: -43 dB
EV0
H
=Version 1.2
RES4
303
RES3
RES2
RES1
DS1.1, 2003-10-23
PEF 2256 H/E
RES0
VN0
E1 Registers
0
0
FALC
(4A)
(4B)
®
56