PEB20591HV22XP Lantiq, PEB20591HV22XP Datasheet - Page 34

• Manufacturer Part Number: PEB20591HV22XP
• Manufacturer: Lantiq

Specifications of PEB20591HV22XP

• Control Interface: HDLC
• Lead Free Status / Rohs Status: Supplier Unconfirmed

PRELIMINARY
Data Sheet
3.3.3.1
In the LT-S mode, the DELIC is the clock master to all terminals connected to the VIP.
In receive direction, two cases are distinguished, depending on the bus configuration:
• Point-to-point or extended passive bus
• Short passive bus.
Point-to-Point or Extended Passive Bus
• Programmed by DELIC IOM-2000 Command bits:
• The 192-kHz receive bit clock is recovered (via PLL) from the receive data stream on
• Shift between receive and transmit frame:
Note: The recommended setting for point-to-point and extended passive bus in
Short Passive Bus
• Programmed by DELIC IOM-2000 Command bits:
• The 192-kHz receive bit clock is identical to the transmit bit clock generated by division
• Shift between receive and transmit frame:
Note: If one VIP has channels working in LT-S and U
Note: The recommended setting for short passive bus in LT-S mode is
MOSEL(1:0) = ’00’ MODE(2:0) = ’011’
the S interface.
According to ITU-T I.430, the receive frame may be shifted by 2 to 8 bits with respect
to the transmit frame. VIP supports also other frame shifts, including 0.
MOSEL(1:0) = ’00’, MODE(2:0) = ’111’
of the incoming IOM-2000 data clock.
The sampling instant for the receive bits is shifted by 4.6 s with respect to the
transmit bit clock. According to ITU-T I.430, the receive frame must be shifted
(delayed) by two bits with respect to the transmit frame.
LT-S mode is TICCMR:OWIN=’101’ and TICCMR:PD=’0’. For detailed
description please refer to VIP channel config command in the DELIC-LC/-
PB SW User’s Manual.
the S interface 6 U
(within the same sync frame).
TICCMR:OWIN=’001’ and TICCMR:PD=’0’. For detailed description please
refer to VIP channel config command in the DELIC-LC/-PB SW User’s
Manual.
LT-S Mode
PN
clocks (nominal case) later than the F-bits on the U
26
PN
mode, then the F-bits appear on
Interface Description
PEB 20590
PEB 20591
2001-03-01
PN
lines