I347-AT4 Datasheet, PDF (94/148 Pages) Intel Corporation – Intel® Ethernet Network Connection I347-AT4 Datasheet

I347-AT4—Programmer’s Visible State
Bits
6:4
3
2
1:0
Field
Mode
Reserved
FIFO Idle
Inserted
Interrupt Enable
FIFO Idle Deleted
Interrupt Enable
Reserved
R/W
R/W
R/W
R/W
HW Rst SW Rst
0x0
Retain
000
Description
0x0
Retain
1 = Interrupt enable
0 = Interrupt disable
0x0
Retain
1 = Interrupt enable
0 = Interrupt disable
0x0
Retain
00
4.1.30 MAC Specific Status Register - Page 2, Register 19
Bits
15:8
7
6:4
3
2
1:0
Field
Mode
Reserved
RO
Copper FIFO
Over/Underflow
RO,LH
Reserved
RO
Copper FIFO Idle
Inserted
Copper FIFO Idle
Deleted
RO,LH
RO,LH
Reserved
RO
HW Rst SW Rst
Description
Always
00
0x0
Always
0
0x0
0x0
Always
0
Always
00
0x0
Always
0
0x0
0x0
Always
0
00000000
1 = Over/Underflow Error
0 = No FIFO Error
000
1 = Idle Inserted
0 = No Idle Inserted
1 = Idle Deleted
0 = Idle not Deleted
00
4.1.31 Copper RX_ER Byte Capture - Page 2, Register 20
Bits
15
14
Field
Capture Data
Valid
Reserved
13:12 Byte Number
11:10 Reserved
9
RX_ER
8
RX_DV
Mode
RO
RO
RO
RO
RO
RO
HW Rst SW Rst
Description
0x0
0x0
1 = Bits 14:0 Valid
0 = Bits 14:0 Invalid
0x0
0x0
0
00 = 4 bytes before RX_ER asserted
01 = 3 bytes before RX_ER asserted
0x0
0x0
10 = 2 bytes before RX_ER asserted
11 = 1 byte before RX_ER asserted
The byte number increments after every read when register
20_2.15 is set to 1.
0x0
0x0
000
RX Error.
Normally this bit will be low since the capture is triggered by
RX_ER being high.
0x0
0x0
However it is possible to see an RX_ER high when the
capture is re-enabled after reading the fourth byte and there
happens to be a long sequence of RX_ER when the capture
restarts.
0x0
0x0
RX Data Valid
84