XRT94L33IB-L Exar Corporation, XRT94L33IB-L Datasheet - Page 171

• Manufacturer Part Number: XRT94L33IB-L
• Description: IC MAPPER DS3/E3/STS-1 504TBGA
• Manufacturer: Exar Corporation

Specifications of XRT94L33IB-L

• Applications: Network Switches
• Interface: Bus
• Voltage - Supply: 3.14 V ~ 3.47 V
• Package / Case: 504-LBGA
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

xr
3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC DATA SHEET
Transmit UTOPIA Control Register – Byte 0, Address = 0x0483
2.2.2
The next functional block, within the Transmit Path of the XRT94L33 is the Transmit ATM Cell Processor
Block. Figure 19 presents an illustration of the XRT94L33 Functional Block Diagram, with the “Transmit ATM
Cell Processor Block” highlighted.
Figure 19: Illustration of the XRT94L33 Functional Block Diagram, with the Transmit ATM Cell
Processor block highlighted
UTOPIA
Level
B
R/W
IT
1
7
TRANSMIT ATM CELL PROCESSOR BLOCK
XRT94L33 – Channel 0
Interface
Telecom
Interface
Multi-PHY
Interface
Interface
Telecom
STS-3
PECL
STS-3
Block
Block
PECL
STS-3
STS-3
STS-3
Block
Block
Block
Bus
CDR
Mode
B
STS-3
Block
R/W
Bus
CDR
IT
1
6
Back Polling
Back-to-
Enable
B
R/W
Processor
Transmit
Processor
Processor
IT
Transmit
1
STS-3
Processor
Receive
Block
TOH
STS-3
Microprocessor
Receive
STS-3
Block
Block
5
TOH
TOH
STS-3
Microprocessor
Block
TOH
Interface
Interface
Block
Block
Access
Status
Direct
B
R/W
IT
0
4
Processor
Processor
Transmit
Processor
Processor
Transmit
Receive
STS-3c
STS-3c
Block
Receive
Block
STS-3c
STS-3c
POH
POH
Block
Block
Synthesizer
POH
POH
171
Synthesizer
Clock
Block
Clock
Block
B
Data Bus Width[1:0]
R/W
Transmit UTOPIA
IT
1
3
Cell Processor
Cell Processor
Cell Processor
Cell Processor
Processor
Processor
Transmit
Processor
Processor
Transmit
Receive
Transmit
Receive
Receive
Transmit
Block
Block
Receive
Block
ATM
PPP
PPP
Block
Block
Block
ATM
Block
ATM
PPP
PPP
Block
ATM
B
R/W
IT
1
2
B
R/W
Cell_Size_Sel[1:0]
POS-PHY
POS-PHY
UTOPIA/
IT
Transmit
Transmit
X
UTOPIA
Interface
Interface
Interface
Interface
POS-PHY
POS-PHY
UTOPIA/
Transmit
Transmit
Receive
Receive
UTOPIA
Interface
Interface
Interface
Interface
Block
Block
Receive
Block
Receive
Block
1
Block
Block
Block
Block
XRT94L33
Rev.1.2.0.
B
R/W
IT
X
0