xrt94l33 Exar Corporation, xrt94l33 Datasheet - Page 163

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

xr
3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC DATA SHEET
Transmit UTOPIA Port Number Register (Address = 0x0597)
This step configures an internal “Transmit UTOPIA Address assignment” pointer to point to “STS-3c Channel
0” within the XRT94L33.
STEP 1b – Set Bits 0 through 4 (“Tx_UTOPIA_Addr[4:0]”) within the “Transmit UTOPIA Address”
Register to the desired “Multi-PHY” Address value for this channel [a4, a3, a2, a1, a0]; as depicted
below.
Transmit UTOPIA Address Register (Address = 0x0593)
This step configures the Transmit UTOPIA Address, of the value [A4, A3, A2, A1, A0] to be assigned to
Channel 0.
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 Receive UTOPIA Address value to the STS-3c Channel 0. This assignment must be
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 “Transmit UTOPIA Address” to STS-3c Channel 1
The user can accomplish this by doing the following.
STEP 2a – Set Bits 0 through 4 (“Tx_UTOPIA_Port_Number[4:0]”) within the “Transmit UTOPIA Port
Number Register” to “0x01”; as depicted below.
Transmit UTOPIA Port Number Register (Address = 0x0597)
This step configures an internal “Transmit UTOPIA Address assignment” pointer to point to “STS-3c Channel
1” within the XRT94L33.
B
B
B
R/O
R/O
RO
among all of the Transmit UTOPIA Interface Addresses within a “Multi-PHY” system.
performed separately per the “Receive 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
A4
IT
IT
IT
0
0
4
4
4
163
B
B
B
R/W
R/W
R/W
A3
IT
IT
IT
0
0
Tx_UTOPIA_Port_Number[4:0]
Tx_UTOPIA_Port_Number[4:0]
3
3
3
Tx_UTOPIA_Addr[4:0]
B
B
B
R/W
R/W
R/W
A2
IT
IT
IT
0
0
2
2
2
B
B
B
R/W
R/W
R/W
A1
IT
IT
IT
0
0
1
1
1
XRT94L33
Rev.1.2.0.
B
B
B
R/W
R/W
R/W
A0
IT
IT
IT
0
1
0
0
0