PEB3081FV14XP Lantiq, PEB3081FV14XP Datasheet - Page 122

• Manufacturer Part Number: PEB3081FV14XP
• Manufacturer: Lantiq

Specifications of PEB3081FV14XP

• Number Of Line Interfaces: 1
• Control Interface: HDLC
• Lead Free Status / Rohs Status: Compliant

Preliminary
3.8
The AUX interface provides various functions, which depend on the operation mode (TE,
LT-T, LT-S, NT or intelligent NT mode) selected by pins MODE0 and MODE1/EAW (see
Table
by the host.
Table 13
General Purpose I/O AUX0-2 (TE, Int. NT mode)
These pins can be used as programmable I/O lines.
As inputs (AOE.OEx=1) the state at the pin is latched in when the host performes read
operation to register ARX.
As outputs (AOE.OEx=0) the value in register ATX is driven on the pins with a minimum
delay after the write operation to this register is performed. They can be configured as
open drain (ACFG1.ODx=0) or push/pull outputs (ACFG1.ODx=1). The status (’1’ or ’0’)
at output pins can be read back from register ARX, which may be different from the ATX
value, e.g. if another device drives a different level.
Channel Select CH0-2 (LT-T, LT-S, NT mode)
In linecard mode one FSC frame is a multiplex of up to eight IOM-2 channels, each of
them consisting of B1-, B2-, MONITOR-, D- and C/I-channel and MR- and MX-bits.
One of eight channels on the IOM-2 interface is selected by CH0-2. These pins must be
strapped to VDD or VSS according to
Data Sheet
Pin
AUX0
AUX1
AUX2
13). After reset the pins are switched as inputs until further configuration is done
Auxiliary Interface
AUX Pin Functions
TE, Int. NT mode
AUX0 (i/o)
AUX1 (i/o)
AUX2 (i/o)
Table
122
14.
LT-T, LT-S, NT mode
CH0 (i)
CH1 (i)
CH2 (i)
Description of Functional Blocks
PEB 3081
PEF 3081
2000-09-27