ENC28J60T/SO Microchip Technology, ENC28J60T/SO Datasheet - Page 37

• Manufacturer Part Number: ENC28J60T/SO
• Description: IC ETHERNET CTRLR W/SPI 28SOIC
• Manufacturer: Microchip Technology

Specifications of ENC28J60T/SO

• Controller Type: Ethernet Controller, MAC/10Base-T
• Interface: SPI
• Voltage - Supply: 3.1 V ~ 3.6 V
• Current - Supply: 160mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-SOIC (7.5mm Width)
• For Use With: DM163024 - BOARD DEMO PICDEM.NET 2AC164123 - BOARD DAUGHTER ETH PICTAIL PLUSAC164121 - BOARD DAUGHTER PICTAIL ETHERNET
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

REGISTER 6-2:
© 2008 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-5
bit 4
bit 3
bit 2
bit 1
bit 0
PADCFG2
R/W-0
PADCFG2:PADCFG0: Automatic Pad and CRC Configuration bits
111 = All short frames will be zero padded to 64 bytes and a valid CRC will then be appended
110 = No automatic padding of short frames
101 = MAC will automatically detect VLAN Protocol frames which have a 8100h type field and auto-
100 = No automatic padding of short frames
011 = All short frames will be zero padded to 64 bytes and a valid CRC will then be appended
010 = No automatic padding of short frames
001 = All short frames will be zero padded to 60 bytes and a valid CRC will then be appended
000 = No automatic padding of short frames
TXCRCEN: Transmit CRC Enable bit
1 = MAC will append a valid CRC to all frames transmitted regardless of PADCFG bits. TXCRCEN
0 = MAC will not append a CRC. The last 4 bytes will be checked and if it is an invalid CRC, it will be
PHDREN: Proprietary Header Enable bit
1 = Frames presented to the MAC contain a 4-byte proprietary header which will not be used when
0 = No proprietary header is present. The CRC will cover all data (normal operation).
HFRMEN: Huge Frame Enable bit
1 = Frames of any size will be allowed to be transmitted and received
0 = Frames bigger than MAMXFL will be aborted when transmitted or received
FRMLNEN: Frame Length Checking Enable bit
1 = The type/length field of transmitted and received frames will be checked. If it represents a length, the
0 = Frame lengths will not be compared with the type/length field
FULDPX: MAC Full-Duplex Enable bit
1 = MAC will operate in Full-Duplex mode. PDPXMD bit must also be set.
0 = MAC will operate in Half-Duplex mode. PDPXMD bit must also be clear.
PADCFG1
R/W-0
must be set if the PADCFG bits specify that a valid CRC will be appended.
reported in the transmit status vector.
calculating the CRC
frame size will be compared and mismatches will be reported in the transmit/receive status vector.
matically pad to 64 bytes. If the frame is not a VLAN frame, it will be padded to 60 bytes. After
padding, a valid CRC will be appended.
MACON3: MAC CONTROL REGISTER 3
W = Writable bit
‘1’ = Bit is set
PADCFG0
R/W-0
TXCRCEN
R/W-0
Preliminary
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
PHDREN
R/W-0
HFRMEN
R/W-0
x = Bit is unknown
FRMLNEN
ENC28J60
R/W-0
DS39662C-page 35
FULDPX
R/W-0
bit 0