peb20560 Infineon Technologies Corporation, peb20560 Datasheet - Page 79

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

Figure 2-19 D-Channel Arbiter
2.1.2.5.1
In upstream direction the arbiter assigns the receive channel of SACCO-A to one
subscriber terminal.
It uses an unidirectional control channel to indicate the terminals whether their
D-channels are available or blocked. The control channel is implemented using different
existing channel structures to close the transmission path between the line card
HDLC-controller and the HDLC-controller in the subscriber terminal. On the line card, the
control channel is either integrated in the C/I-channel or transmitted in the MR-bit
depending on a programming of bit AMO:CCHH (OCTAT-P → C/I channel, IBC →
MR-bit).
Semiconductor Group
Down
Stream
Up
Stream
IOM -2 Channels
Port 0
Port 1
Port 2
Port 3
Port 0
Port 1
Port 2
Port 3
Ch0 Ch1 Ch2 Ch3 Ch4 Ch5 Ch6 Ch7
Upstream Direction
R
Control
Data
2-33
Mux
Mux
State
Machine
Arbiter
ASM
Data OUT
Serial
SACCO-A
Channel
Transmit
D-Channel Arbiter
Transmit
Strobe
Functional Block Description
Control
Channel
Master
CCM
Receive
Strobe
SACCO-A
Receive
Channel
Channel
Selector
Transmit
TCHS
PEB 20560
Serial
Data IN
ITS05840
2003-08