UTOPIA16EVK/NOPB National Semiconductor, UTOPIA16EVK/NOPB Datasheet - Page 51

• Manufacturer Part Number: UTOPIA16EVK/NOPB
• Manufacturer: National Semiconductor

Specifications of UTOPIA16EVK/NOPB

• Lead Free Status / Rohs Status: Compliant

ALBCF3 0x1C
ALBCF2 0x1D
ALBCF1 0x1E
ALBCF0 0x1F
18.0 Register Description
18.19 ATM LOOPBACK MPhy — 0x1B ALBMP
Type:
Software Lock: No
Reset Value:
The ATM Loopback MPhy register defines the MPhy address attached to the ATM loopback cell. Setting the TXLVLB bit in the
ALBC register initiates these loopback cells.
18.20 ATM LOOPBACK CELL FORMAT — 0x1C to 0x1F ALBCF3 to ALBCF0
Type:
Software Lock: No
Reset Value:
The ALBCF3, ALBCF2, ALBCF1 and ALBCF0 registers define the format of the ATM loopback cell header.
18.21 RECEIVE PORT A LINK LABEL — 0x20 RALL
Type:
Software Lock: No
Reset Value:
The Receive Port A Link Label register contains the Link Trace Label byte received in TC6 on receive Port A. Whenever the
received link label changes value, the RALLC alarm bit in the RALA register is set, which will raise an interrupt if the
corresponding interrupt enable bit is set.
18.22 RECEIVE PORT A EXPECTED LINK LABEL — 0x21 RAELL
• LBMP[4:0] ATM loopback cell five bit MPhy address.
• ALBCF3[7:0] Loopback Cell header byte H1 format.
• ALBCF2[7:0] Loopback Cell header byte H2 format.
• ALBCF1[7:0] Loopback Cell header byte H3 format.
• ALBCF0[7:0] Loopback Cell header byte H4 format.
• RALL[7:0] Port A Received Link Trace Label byte contents.
Reserved
RAELL[7]
RALL[7]
ALBCF3[7]
ALBCF2[7]
ALBCF1[7]
ALBCF0[7]
7
7
7
Read/Write
0x00
Read/Write
0x00
Read only
0x00
7
Reserved
RAELL[6]
RALL[6]
ALBCF3[6]
ALBCF2[6]
ALBCF1[6]
ALBCF0[6]
6
6
6
6
Reserved
RAELL[5]
RALL[5]
5
5
5
ALBCF3[5]
ALBCF2[5]
ALBCF1[5]
ALBCF0[5]
(Continued)
TABLE 40. ALBCF3–ALBCF0
5
RAELL[4]
LBMP[4]
RALL[4]
TABLE 39. ALBMP
TABLE 42. RAELL
TABLE 41. RALL
4
4
4
ALBCF3[4]
ALBCF2[4]
ALBCF1[4]
ALBCF0[4]
51
4
RAELL[3]
LBMP[3]
RALL[3]
3
3
3
ALBCF3[3]
ALBCF2[3]
ALBCF1[3]
ALBCF0[3]
3
RAELL[2]
LBMP[2]
RALL[2]
2
2
2
ALBCF3[2]
ALBCF2[2]
ALBCF1[2]
ALBCF0[2]
2
RAELL[1]
LBMP[1]
RALL[1]
1
1
1
ALBCF3[1]
ALBCF2[1]
ALBCF1[1]
ALBCF0[1]
RAELL[0]
LBMP[0]
RALL[0]
1
0
0
0
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ALBCF3[0]
ALBCF2[0]
ALBCF1[0]
ALBCF0[0]
0