LAN9312-NU Standard Microsystems (SMSC), LAN9312-NU Datasheet - Page 226
![no-image](/images/manufacturer_photos/0/6/632/standard_microsystems__smsc__sml.jpg)
LAN9312-NU
Manufacturer Part Number
LAN9312-NU
Description
Manufacturer
Standard Microsystems (SMSC)
Datasheet
1.LAN9312-NU.pdf
(458 pages)
Specifications of LAN9312-NU
Number Of Primary Switch Ports
2
Operating Supply Voltage (typ)
3.3V
Fiber Support
No
Phy/transceiver Interface
MII
Power Supply Type
Analog
Data Rate (typ)
10/100Mbps
Vlan Support
Yes
Operating Temperature (max)
70C
Operating Temperature (min)
0C
Pin Count
128
Mounting
Surface Mount
Jtag Support
No
Operating Supply Voltage (max)
3.6V
Operating Supply Voltage (min)
3V
Operating Temperature Classification
Commercial
Data Rate
100Mbps
Lead Free Status / RoHS Status
Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LAN9312-NU
Manufacturer:
Microchip Technology
Quantity:
10 000
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Revision 1.7 (06-29-10)
14.2.5.23
31:25
BITS
15:9
24
23
22
21
20
19
18
17
16
8
7
6
5
4
RESERVED
1588 Port 2 RX Interrupt Enable (1588_PORT2_RX_EN)
1588 Port 2 TX Interrupt Enable (1588_PORT2_TX_EN)
1588 Port 1 RX Interrupt Enable (1588_PORT1_RX_EN)
1588 Port 1 TX Interrupt Enable (1588_PORT1_TX_EN)
1588 Port 0(Host MAC) RX Interrupt Enable (1588_MII_RX_EN)
1588 Port 0(Host MAC) TX Interrupt Enable (1588_MII_TX_EN)
GPIO9 1588 Interrupt Enable (1588_GPIO9_EN)
GPIO8 1588 Interrupt Enable (1588_GPIO8_EN)
1588 Timer Interrupt Enable (1588_TIMER_EN)
RESERVED
1588 Port 2 RX Interrupt (1588_PORT2_RX_INT)
This interrupt indicates that a packet received by Port 2 matches the
configured PTP packet and the 1588 clock was captured.
1588 Port 2 TX Interrupt (1588_PORT2_TX_INT)
This interrupt indicates that a packet transmitted by Port 2 matches the
configured PTP packet and the 1588 clock was captured.
1588 Port 1 RX Interrupt (1588_PORT1_RX_INT)
This interrupt indicates that a packet received by Port 1 matches the
configured PTP packet and the 1588 clock was captured.
1588 Port 1 TX Interrupt (1588_PORT1_TX_INT)
This interrupt indicates that a packet transmitted by Port 1 matches the
configured PTP packet and the 1588 clock was captured.
1588 Port 0(Host MAC) RX Interrupt (1588_MII_RX_INT)
This interrupt indicates that a packet from the switch fabric to the Host MAC
the matches the configured PTP packet and the 1588 clock was captured.
Note:
1588 Interrupt Status and Enable Register (1588_INT_STS_EN)
This read/write register contains the IEEE 1588 interrupt status and enable bits.
Writing a 1 to any of the interrupt status bits acknowledges and clears the interrupt. If enabled, these
interrupt bits are cascaded into bit 29 (1588_EVNT) of the
a 1 to any of the interrupt enable bits will enable the corresponding interrupt as a source. Status bits
will still reflect the status of the interrupt source regardless of whether the source is enabled as an
interrupt in this register. Bit 29 (1588_EVNT_EN) of the
be set in order for an actual system level interrupt to occur. Refer to
on page 49
For Port 0, receive is defined as data from the switch fabric, while
transmit is to the switch fabric.
Offset:
for additional information.
198h
DESCRIPTION
High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
DATASHEET
226
Size:
Interrupt Enable Register (INT_EN)
Interrupt Status Register
32 bits
Chapter 5, "System Interrupts,"
TYPE
R/WC
R/WC
R/WC
R/WC
R/WC
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
RO
RO
(INT_STS). Writing
SMSC LAN9312
DEFAULT
must also
Datasheet
0b
0b
0b
0b
0b
0b
0b
0b
0b
0b
0b
0b
0b
0b
-
-
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