Intel® IXP400 Software

Access-Layer Components: HSS-Access (IxHssAcc) API

Programmer’s Guide IXP400 Software Version 2.0 April 2005

Document Number: 252539, Revision: 007 217

Figure 70. HSS Channelized Transmit Operation

...
Channel:
F0-
TSa F0-
TSb F0-
TSc
...
F0-
TSz
Frame 0
01 2 N
F1-
TSa F1-
TSb F1-
TSc
...
F1-
TSz
Frame 1
01 2 N
...

NPE-A

HssChannelized Tx

Operation

TxPtrCircBufSizeB
...
Circular buffer
for pointers
to Tx-data
blocks
F0-TSa
F1-TSa
F2-TSa
..
.
First Tx-data
block for
channel 0
1. Tx data for e a c h
channel read
using pointers
in TxPtrC irc B u f
TxPtrCircBuf
2. Tx data tran s m itted
to HSS p o r t

HSS P or t S erial D a ta S trea m

(TSa, T S b, ... = tim eslots c o nfigu r e d a s "v o ic e " )

PtrChN
PtrCh0
PtrCh1
PtrCh2
..
.
PtrChN
PtrCh0
PtrCh1
PtrCh2
..
.
PtrChN
PtrCh0
PtrCh1
PtrCh2
..
.
..
.
..
.
Second
Tx-data
block for
channel 0
Second
Tx-data
block for
channel 1
F0-TSz
F1-TSz
F2-TSz
..
.
F0-TSb
F1-TSb
F2-TSb
..
.
First Tx-data
block for
channel 1
First Tx-data
block for
channel N
B2385-02