peb20560 Infineon Technologies Corporation, peb20560 Datasheet - Page 417

• Manufacturer Part Number: peb20560
• Description: Dsp Oriented Pbx Controller Doc
• Manufacturer: Infineon Technologies Corporation

Semiconductor Group
Figure 9-4b EPIC
POFD
OFD2
POFU
OFU2
PCSR
OFD0
DRE = Downstream Rising Edge,
OFU0
URE = Upstream Rising Edge,
Mode 0: (BND – 17 + BPF) mod BPF --> OFD2
Mode 1: (BND – 33 + BPF) mod BPF --> OFD1
Mode 2: (BND – 65 + BPF) mod BPF --> OFD0
BND = number of bits + 1 that the downstream frame start is left shifted relative to the
BPF = number of bits per frame
Unused bits must be set to 0 !
Mode 0: (BND + 23 + BPF) mod BPF --> OFU2
Mode 1: (BND + 47 + BPF) mod BPF --> OFU1
Mode 2: (BND + 95 + BPF) mod BPF --> OFU0
BND = number of bits + 1 that the upstream frame is left shifted relative to the frame start
BPF = number of bits per frame
Unused bits must be set to 0 !
0
…
…
…
…
frame sync
0 = receive data on falling edge,
1 = receive data on rising edge
0 = send data on falling edge,
1 = send data on rising edge
9 = Offset Downstream (see PCSR for OFD0
9 = Offset Upstream (see PCSR for OFU0
1 = Offset Downstream (see POFD)
1 = Offset Upstream (see POFU)
PCM Offset Downstream Register RW, 24
PCM Offset Upstream Register
PCM Clock Shift Register
OFD1
®
Initialization Register Summary (working sheet)
…
0
DRE
OFD9..2
OFU9..2
9-6
RW, 26
RW, 28
0
…
…
…
…
…
…
…
9
9
9
9
9
9
1)
…
H
H
H
1)
(2
(3
(4
H
H
H
+ RBS = 1), reset-val. = 0
+ RBS = 1), reset-val. = 0
+ RBS = 1), reset-val. = 0
OFU1
…
0
PEB 20560
URE
Appendix
2003-08