XRT94L33IB-L Exar Corporation, XRT94L33IB-L Datasheet - Page 455

• 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
Once the user has executed STEPS 1a and 1b, then STS-3c Channel 0 (within the XRT94L33) has been
assigned the “Transmit UTOPIA Address” of [a4, a3, a2, a1, a0].
STEP 2 – Assign a “Receive UTOPIA Address” to STS-3c Channel 1
The user can accomplish this by doing the following.
STEP 2a – Set Bits 0 through 4 (“Rx_UTOPIA_Port_Number[4:0]”) within the “Receive UTOPIA Port
Number Register” to “0x01”; as depicted below.
Receive UTOPIA Port Number Register (Address = 0x0517)
This step configures an internal “Receive UTOPIA Address assignment” pointer to point to “STS-3c Channel
1” within the XRT94L33.
STEP 2b – Set Bits 0 through 4 (“Rx_UTOPIA_Addr[4:0]”) within the “Receive UTOPIA Address”
Register to the desired “Multi-PHY” Address value for this channel [b4, b3, b2, b1, b0]; as depicted
below.
Receive UTOPIA Address Register (Address = 0x0513)
This step configures the Receive UTOPIA Address, of the value [B4, B3, B2, B1, B0] to be assigned to
Channel 1.
Notes:
During this step, the user can write in any value, between 0x00 and 0x1E, provided this “Multi-PHY Address” is unique
Use of the value “0x1F” is NOT permitted.
These steps do not assign a Transmit UTOPIA Address value to STS-3c Channel 1. This assignment must be performed
Once the user has executed STEPS 2a and 2b, then STS-3c Channel 1 (within the XRT94L33) has been
assigned the “Receive UTOPIA Address” of [b4, b3, b2, b1, b0].
STEP 3 – Assign a “Receive UTOPIA Address” to STS-3c Channel 2
The user can accomplish this by doing the following.
STEP 3a – Set Bits 0 through 4 (“Rx_UTOPIA_Port_Number[4:0]”) within the “Receive UTOPIA Port
Number Register” to “0x02”; as depicted below.
Receive UTOPIA Port Number Register (Address = 0x0517)
B
B
B
R/O
R/O
RO
among all of the Receive UTOPIA Addresses within a “Multi-PHY” system.
separately per the “Transmit UTOPIA Address Assignment” instructions presented in Section _.
IT
IT
IT
0
0
0
7
7
7
Unused
Unused
Unused
B
B
B
R/O
R/O
RO
IT
IT
IT
0
0
0
6
6
6
B
B
B
R/O
R/O
RO
IT
IT
IT
0
0
0
5
5
5
B
B
B
R/W
R/W
R/W
B4
IT
IT
IT
0
0
4
4
4
455
B
B
B
R/W
R/W
R/W
B3
IT
IT
IT
0
0
Rx_UTOPIA_Port_Number[4:0]
Rx_UTOPIA_Port_Number[4:0]
3
3
3
Rx_UTOPIA_Addr[4:0]
B
B
B
R/W
R/W
R/W
B2
IT
IT
IT
0
0
2
2
2
B
B
B
R/W
R/W
R/W
B1
IT
IT
IT
0
1
1
1
1
XRT94L33
Rev.1.2.0.
B
B
B
R/W
R/W
R/W
B0
IT
IT
IT
1
0
0
0
0