xrt94l33 Exar Corporation, xrt94l33 Datasheet - Page 456

• Manufacturer Part Number: xrt94l33
• Description: Multi-channel, Multi-function Device Aggregates 3 Ds3/e3/sts-1 Into Oc3/stm-1
• Manufacturer: Exar Corporation

XRT94L33
Rev.1.2.0.
This step configures an internal “Receive UTOPIA Address assignment” pointer to point to “STS-3c Channel
2” within the XRT94L33.
STEP 3b – 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 [c4, c3, c2, c1, c0]; as depicted
below.
Receive UTOPIA Address Register (Address = 0x0513)
This step configures the Receive UTOPIA Address, of the value [C4, C3, C2, C1, C0] to be assigned to STS-
3c Channel 2.
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 2. This assignment must be performed
Once the user has executed STEPS 3a and 3b then STS-3c Channel 2 (within the XRT94L33) has been
assigned the “Receive UTOPIA Address” of [c4, c3, c2, c1, c0].
STEP 4 – Assign a “Receive UTOPIA Address” to STS-3c Channel 3
The user can accomplish this by doing the following.
STEP 4a – Set Bits 0 through 4 (“Rx_UTOPIA_Port_Number[4:0]”) within the “Receive UTOPIA Port
Number Register” to “0x03”; 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
3” within the XRT94L33.
STEP 4b – Set Bits 0 through 4 (“Rx_UTOPIA_Addr[4:0]”) within the “Receive UTOPIA Address”
Register to the “Multi-PHY” Address value for this channel [d4, d3, d2, d1, d0]; as depicted below.
Receive UTOPIA Address Register (Address = 0x0513)
This step configures the Receive UTOPIA Address, of the value [D4, D3, D2, D1, D0] to be assigned to STS-
3c Channel 3.
B
B
B
R/O
RO
RO
among all of the Receive UTOPIA Interface 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
RO
RO
IT
IT
IT
0
0
0
6
6
6
B
B
B
R/O
RO
RO
IT
IT
IT
0
0
0
3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC DATA SHEET
5
5
5
B
B
B
R/W
R/W
R/W
C4
D4
IT
IT
IT
0
4
4
4
456
B
B
B
R/W
R/W
R/W
C3
D3
IT
IT
IT
0
Rx_UTOPIA_Port_Number[4:0]
3
3
3
Rx_UTOPIA_Addr[4:0]
Rx_UTOPIA_Addr[4:0]
B
B
B
R/W
R/W
R/W
C2
D2
IT
IT
IT
0
2
2
2
B
B
B
R/W
R/W
R/W
C1
D1
IT
IT
IT
1
1
1
1
xr
B
B
B
R/W
R/W
R/W
C0
D0
IT
IT
IT
1
0
0
0