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2.0 Pin Description
(Continued)
DP83816
Note: DP83816 supports NM27LV010 for the BIOS ROM interface device.
100BASE-TX/10BASE-T Interface
Symbol
LQFP Pin
No(s)
Dir
Description
TPTDP, TPTDM
54, 53
A-O
Transmit Data:
Differential common output driver. This differential common output
is configurable to either 10BASE-T or 100BASE-TX signaling:
10BASE-T: Transmission of Manchester encoded 10BASE-T packet data as well as
Link Pulses (including Fast Link Pulses for Auto-Negotiation purposes).
100BASE-TX: Transmission of ANSI X3T12 compliant MLT-3 data.
The DP83816 will automatically configure this common output driver for the proper
signal type as a result of either forced configuration or Auto-Negotiation.
TPRDP, TPRDM
46, 45
A-I
Receive Data:
Differential common input buffer. This differential common input can
be configured to accept either 100BASE-TX or 10BASE-T signaling:
10BASE-T: Reception of Manchester encoded 10BASE-T packet data as well as
normal Link Pulses and Fast Link Pulses for Auto-Negotiation purposes.
100BASE-TX: Reception of ANSI X3T12 compliant scrambled MLT-3 data.
The DP83816 will automatically configure this common input buffer to accept the
proper signal type as a result of either forced configuration or Auto-Negotiation.
BIOS ROM/Flash Interface
Symbol
LQFP Pin
No(s)
Dir
Description
MCSN
129
O
BIOS ROM/Flash Chip Select:
During a BIOS ROM/Flash access, this signal is
used to select the ROM device.
MD7, MD6, MD5,
MD4/EEDO, MD3,
MD2,
MD1/CFGDISN,
MD0
141, 140, 139,
138, 135,
134,
133,
132
I/O
BIOS ROM/Flash Data Bus:
During a BIOS ROM/Flash access these signals are
used to transfer data to or from the ROM/Flash device.
MD[5:0] pins have internal weak pull ups.
MD6 and MD7 pins have internal weak pull downs.
MA5,
MA4/EECLK,
MA3/EEDI,
MA2/LED100LNK,
MA1/LED10LNK,
MA0/LEDACT
3,
2,
1,
144,
143,
142
O
BIOS ROM/Flash Address:
During a BIOS ROM/Flash access, these signals are
used to drive the ROM/Flash address.
MWRN
131
O
BIOS ROM/Flash Write:
During a BIOS ROM/Flash access, this signal is used to
enable data to be written to the Flash device.
MRDN
130
O
BIOS ROM/Flash Read:
During a BIOS ROM/Flash access, this signal is used to
enable data to be read from the Flash device.
Summary of Contents for DP83816AVNG
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