AM79C874VC AMD (ADVANCED MICRO DEVICES), AM79C874VC Datasheet - Page 38

• Manufacturer Part Number: AM79C874VC
• Manufacturer: AMD (ADVANCED MICRO DEVICES)

Specifications of AM79C874VC

• Lead Free Status / RoHS Status: Not Compliant

38
Reg
Reg
18
18
18
18
18
18
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
15:12 Reserved
Bit
7:0
Bit
11
10
15
14
13
12
11
10
9
8
9
8
7
6
5
4
3
2
1
0
Name
DPLX
Data Rate
RX_PASS
RX_LOCK
Reserved
Name
Jabber_IE
Rx_Er_IE
Page_Rx_IE
PD_Fault_IE
LP_Ack_IE
Link_Not_OK_ IE
R_Fault_IE
ANeg_Comp_IE
Jabber_Int
Rx_Er_Int
Page_Rx_Int
PD_Fault_Int
LP_Ack_Int
Link_Not_OK Int
R_Fault_Int
A_Neg_Comp Int
Table 24. Interrupt Control/Status Register (Register 17)
Table 25. Diagnostic Register (Register 18)
Description
Jabber Interrupt Enable
Receive Error Interrupt Enable
Page Received Interrupt Enable
Parallel Detection Fault Interrupt Enable
Link Partner Acknowledge Interrupt Enable
Link Status Not OK Interrupt Enable
Remote Fault Interrupt Enable
Auto-Negotiation Complete Interrupt Enable
This bit is set when a jabber event is detected.
This bit is set when RX_ER transitions high.
This bit is set when a new page is received from link partner during
Auto-Negotiation.
This bit is set for a parallel detection fault.
This bit is set when an FLP with the acknowledge bit set is
received.
This bit is set when link status switches from OK status to Not-OK
(Fail or Ready).
This bit is set when a remote fault is detected.
This bit is set when Auto-Negotiation is complete.
Description
Ignore when read.
1 = The result of Auto-Negotiation for Duplex is Full-duplex.
0 = The result of Auto-Negotiation for Duplex is Half-duplex.
1 = The result of Auto-Negotiation for data-rate arbitration is 100
Mbps.
0 = The result of Auto-Negotiation for data-rate arbitration is 10
Mbps.
Operating in 100BASE-X mode:
1 = A valid signal has been received but the PLL has not
necessarily locked.
0 = A valid signal has not been received.
Operating in 10BASE-T mode:
1 = Manchester data has been detected.
0 = Manchester data has not been detected.
1 = Receive PLL has locked onto received signal for selected
data-rate (10BASE-T or 100BASE-X).
0 = Receive PLL has not locked onto received signal.
This bit remains set until it is read.
Ignore when read.
D A T A
Am79C874
S H E E T
RO/RC
Read/
Read/
Write
Write
RW
RW
RW
RW
RW
RW
RW
RW
RC
RC
RC
RC
RC
RC
RC
RC
RO
RO
RO
RO
RO
Default
Default
22235K
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0