LAN9210 데이터 시트보기 (PDF) - SMSC -> Microchip
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LAN9210 Datasheet PDF : 147 Pages
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Small Form Factor Single-Chip Ethernet Controller with HP Auto-MDIX Support
Datasheet
2.1
Pin List
Table 2.1 Host Bus Interface Signals
NAME
Host Data
Host Address
Read Strobe
Write Strobe
Chip Select
Interrupt
Request
FIFO Select
SYMBOL
D[15:0]
A[7:1]
nRD
nWR
nCS
IRQ
FIFO_SEL
BUFFER
#
TYPE PINS
DESCRIPTION
I/O8
16 Bi-directional data port.
IS
7 7-bit Address Port. Used to select Internal CSR’s and
TX and RX FIFOs.
IS
1 Active low strobe to indicate a read cycle.
IS
1 Active low strobe to indicate a write cycle. This signal,
qualified with nCS, is also used to wakeup the
LAN9210 when it is in a reduced power state.
IS
1 Active low signal used to qualify read and write
operations. This signal qualified with nWR is also used
to wakeup the LAN9210 when it is in a reduced power
state.
O8/OD8
1 Programmable Interrupt request. Programmable
polarity, source and buffer types.
IS
1 When driven high all accesses to the LAN9210 are to
the RX or TX Data FIFOs. In this mode, the A[7:3]
upper address inputs are ignored.
NAME
TPO+
TPO-
TPI+
TPI-
PHY External Bias
Resistor
SYMBOL
TPO+
TPO-
TPI+
TPI-
EXRES1
Table 2.2 LAN Interface Signals
BUFFER
TYPE
AO
AO
AI
AI
AI
NUM
PINS
1
1
1
1
1
DESCRIPTION
Transmit Positive Output (normal)
Receive Positive Input (reversed)
Transmit Negative Output (normal)
Receive Negative Input (reversed)
Receive Positive Input (normal)
Transmit Positive Input (reversed)
Receive Negative Input (normal)
Transmit Negative Output (reversed)
Must be connected to ground through a 12.4K
ohm 1% resistor.
Note: The pin names for the twisted pair pins shown above apply to a normal connection. If HP Auto-
MDIX is enabled and a reverse connection is detected, or a reverse connection is manually
selected, the input pins become outputs, and vice-versa, as indicated in the descriptions.
SMSC LAN9210
15
DATASHEET
Revision 2.7 (03-15-10)
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