LAN91C96 Просмотр технического описания (PDF) - SMSC -> Microchip
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LAN91C96 Datasheet PDF : 125 Pages
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Non-PCI Single-Chip Full Duplex Ethernet Controller with Magic Packet
PIN NO.
TQFP
QFP
55-58 60-
63 7-10
12-15
57-60,
62-65,
9-12,
14-17
PIN NAME
D0-15
65
67
RESET
25
27
BALE/nWE
17
19
INTR0/
nIREQ/
INTR
18
20
INTR1/
nINPACK
20
22
INTR2
21
23
INTR3
23
25
nIOCS16/
nIOIS16
49
51
nIORD/
xDS
TYPE
I/O24
IS with
pullup
**
IS with
pullup
**
O24
O24
O24
O24
OD24
IS with
pullup
**
DESCRIPTION
Bidirectional. 16 bit data bus used to access the
LAN91C96 internal registers. The data bus has weak
internal pullups. Supports direct connection to the
system bus without external buffering. In the case of a
68000 host processor, the upper byte of the data bus
must be connected to the lower byte of the 68000 data
bus and the lower byte of the data bus must be
connected to the upper byte of the 68000 data bus.
Input. Active high Reset. This input is not considered
active unless it is active for at least 100ns to filter
narrow glitches.
LOCAL BUS - Input. Address strobe. For systems that
require address latching, the falling edge of BALE
latches address lines and nSBHE.
PCMCIA - Write Enable input. Used for writing into
COR and CSR registers as well as attribute memory
space.
LOCAL BUS - Active high interrupt signal. The
interrupt line selection is determined by the value of
INT SEL1-0 bits in the Configuration Register. This
interrupt is tri-stated when not selected.
PCMCIA - Active low interrupt request output.
68000 – Active high interrupt signal. The INT SEL1-0
bits in the Configuration register must indicate INT0
selection.
LOCAL BUS - Output. Active high interrupt signal. The
interrupt line selection is determined by the value of
INT SEL1-0 bits in the Configuration Register. This
interrupt is tri-stated when not selected.
PCMCIA - Output asserted to acknowledge read
cycles.
LOCAL BUS - Outputs. Active high interrupt signals.
The interrupt line selection is determined by the value
of INT SEL1-0 bits in the Configuration Register.
These interrupts are tri-stated when not selected.
LOCAL BUS - Outputs. Active high interrupt signals.
The interrupt line selection is determined by the value
of INT SEL1-0 bits in the Configuration Register.
These interrupts are tri-stated when not selected.
LOCAL BUS - Active low output asserted in 16 bit
mode when AEN is low and A4-A15 decode to the
LAN91C96 address programmed into the high byte of
the Base Address Register.
PCMCIA - Active low output asserted whenever the
LAN91C96 is in 16 bit mode, COR0 bit is high and
nREG is low.
LOCAL BUS, PCMCIA - Input. Active low read strobe
used to access the LAN91C96 IO space.
68000 – Data strobe input. UDS, LDS, or DS can be
tied to this pin.
SMSC LAN91C965v&3v
Page 17
DATASHEET
Rev. 09/10/2004
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