ENC28J60
TABLE 3-2:
ENC28J60 CONTROL REGISTER SUMMARY
Value
on
Reset
Details
on
Page
Register Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
r
r
EIE
INTIE
—
PKTIE
PKTIF
DMAIE
DMAIF
r
LINKIE
LINKIF
LATECOL
r
TXIE
TXIF
—
TXERIE
TXERIF
TXABRT
—
RXERIE
RXERIF
CLKRDY(1) 0000 -000
0000 0000
-000 0000
65
66
64
16
15
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
17
71
71
71
71
71
71
72
72
52
52
52
52
52
52
52
52
51
51
51
51
51
51
51
51
EIR
ESTAT
INT
BUFER
PKTDEC
RXRST
RXBUSY
—
ECON2
AUTOINC
TXRST
PWRSV
DMAST
VRPS
TXRTS
—
1000 0---
0000 0000
1111 1010
---0 0101
0000 0000
---0 0000
0000 0000
---0 0000
0000 0000
---0 0000
1111 1010
---0 0101
1111 1111
---1 1111
1111 1010
---0 0101
0000 0000
---0 0000
0000 0000
---0 0000
0000 0000
---0 0000
0000 0000
---0 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
ECON1
CSUMEN
RXEN
BSEL1
BSEL0
ERDPTL
ERDPTH
EWRPTL
EWRPTH
ETXSTL
ETXSTH
ETXNDL
ETXNDH
ERXSTL
ERXSTH
ERXNDL
ERXNDH
ERXRDPTL
ERXRDPTH
ERXWRPTL
ERXWRPTH
EDMASTL
EDMASTH
EDMANDL
EDMANDH
EDMADSTL
EDMADSTH
EDMACSL
EDMACSH
EHT0
Read Pointer Low Byte ERDPT<7:0>)
—
—
—
Read Pointer High Byte (ERDPT<12:8>)
Write Pointer High Byte (EWRPT<12:8>)
TX Start High Byte (ETXST<12:8>)
TX End High Byte (ETXND<12:8>)
RX Start High Byte (ERXST<12:8>)
RX End High Byte (ERXND<12:8>)
Write Pointer Low Byte (EWRPT<7:0>)
—
—
—
TX Start Low Byte (ETXST<7:0>)
—
—
—
TX End Low Byte (ETXND<7:0>)
—
—
—
RX Start Low Byte (ERXST<7:0>)
—
—
—
RX End Low Byte (ERXND<7:0>)
—
—
—
RX RD Pointer Low Byte (ERXRDPT<7:0>)
RX RD Pointer High Byte (ERXRDPT<12:8>)
RX WR Pointer Low Byte (ERXWRPT<7:0>)
—
—
—
—
—
—
RX WR Pointer High Byte (ERXWRPT<12:8>)
DMA Start High Byte (EDMAST<12:8>)
DMA End High Byte (EDMAND<12:8>)
DMA Start Low Byte (EDMAST<7:0>)
—
—
—
DMA End Low Byte (EDMAND<7:0>)
—
—
—
DMA Destination Low Byte (EDMADST<7:0>)
DMA Destination High Byte (EDMADST<12:8>)
DMA Checksum Low Byte (EDMACS<7:0>)
—
—
—
DMA Checksum High Byte (EDMACS<15:8>)
Hash Table Byte 0 (EHT<7:0>)
EHT1
Hash Table Byte 1 (EHT<15:8>)
EHT2
Hash Table Byte 2 (EHT<23:16>)
EHT3
Hash Table Byte 3 (EHT<31:24>)
EHT4
Hash Table Byte 4 (EHT<39:32>)
EHT5
Hash Table Byte 5 (EHT<47:40>)
EHT6
Hash Table Byte 6 (EHT<55:48>)
EHT7
Hash Table Byte 7 (EHT<63:56>)
EPMM0
EPMM1
EPMM2
EPMM3
EPMM4
EPMM5
EPMM6
EPMM7
Pattern Match Mask Byte 0 (EPMM<7:0>)
Pattern Match Mask Byte 1 (EPMM<15:8>)
Pattern Match Mask Byte 2 (EPMM<23:16>)
Pattern Match Mask Byte 3 (EPMM<31:24>)
Pattern Match Mask Byte 4 (EPMM<39:32>)
Pattern Match Mask Byte 5 (EPMM<47:40>)
Pattern Match Mask Byte 6 (EPMM<55:48>)
Pattern Match Mask Byte 7 (EPMM<63:56>)
Legend:
Note 1:
x= unknown, u= unchanged, — = unimplemented, q= value depends on condition, r = reserved, do not modify.
CLKRDY resets to ‘0’ on Power-on Reset but is unaffected on all other Resets.
EREVID is a read-only register.
2:
3:
ECOCON resets to ‘---- -100’ on Power-on Reset and ‘---- -uuu’ on all other Resets.
© 2006 Microchip Technology Inc.
Preliminary
DS39662B-page 13
MICROCHIP [ MICROCHIP ]
