PEF20550HV21XT Lantiq, PEF20550HV21XT Datasheet - Page 132

• Manufacturer Part Number: PEF20550HV21XT
• Manufacturer: Lantiq

Specifications of PEF20550HV21XT

• Lead Free Status / Rohs Status: Supplier Unconfirmed

OFD9..2
4.6.2
Access in demultiplexed P-interface mode:
Access in multiplexed P-interface mode:
Reset value: FF
BNF7..0
4.6.3
Access in demultiplexed P-interface mode:
Access in multiplexed P-interface mode:
Reset value: 00
Semiconductor Group
bit 7
bit 7
OFD9
BNF7
Bit Number per PCM-Frame (PBNR)
PCM-Offset Downstream Register (POFD)
Bit Number per PCM Frame.
PCM-mode 0: BNF7..0 = number of bits – 1
PCM-mode 1: BNF7..0 = (number of bits – 2) / 2
PCM-mode 2: BNF7..0 = (number of bits – 4) / 4
PCM-mode 3: BNF7..0 = (number of bits – 2) / 2
The value programmed in PBNR is also used to check the PFS-period.
Offset Downstream bit 9…2.
These bits together with PCSR:OFD1..0 determine the offset of the PCM-
frame in downstream direction. The following formulas apply for calculating
the required register value. BND is the bit number in downstream direction
marked by the rising internal PFS-edge. BPF denotes the actual number of
bits constituting a frame.
PCM-mode 0:
PCM-mode 1,3:
PCM-mode 2:
OFD8
BNF6
H
H
OFD7
BNF5
OFD9..2 = mod
PCSR:OFD1..0 = 0
PFD9..1 = mod
PCSR: PFD0 = 0
OFD9..0 = mod
OFD6
BNF4
132
OFD5
BNF3
BPF
BPF
BPF
(BND – 33 + BPF)
read/write
read/write
read/write
read/write
(BND – 17 + BPF)
(BND – 65 + BPF)
Detailed Register Description
OFD4
BNF2
address: 11
address: 12
address: 22
address: 24
OFD3
BNF1
PEB 20550
PEF 20550
bit 0
bit 0
H
H
H
H
OFD2
BNF0
01.96