LAN9312-NU Standard Microsystems (SMSC), LAN9312-NU Datasheet - Page 225
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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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High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
Datasheet
SMSC LAN9312
BITS
4:3
2:1
5
0
Lock Enable GPIO 8 (LOCK_GPIO_8)
This bit enables/disables the GPIO 8 lock. This lock prevents a 1588 capture
from overwriting the Clock value if the 1588_GPIO8 interrupt in the
Interrupt Status and Enable Register (1588_INT_STS_EN)
due to a previous capture.
0: Disables GPIO 8 Lock
1: Enables GPIO 8 Lock
GPIO 9 Clock Event Mode (GPIO_EVENT_9)
These bits determine the output on GPIO 9 when a clock target compare
event occurs.
00: 100ns pulse output
01: Toggle output
10: 1588_TIMER_INT bit value in the 1588_INT_STS_EN register output
11: RESERVED
Note:
Note:
GPIO 8 Clock Event Mode (GPIO_EVENT_8)
These bits determine the output on GPIO 8 when a clock target compare
event occurs.
00: 100ns pulse output
01: Toggle output
10: 1588_TIMER_INT bit value in the 1588_INT_STS_EN register output
11: RESERVED
Note:
Note:
Reload/Add (RELOAD_ADD)
This bit determines the course of action when a clock target compare event
occurs. When set, the
(1588_CLOCK_TARGET_HI)
(1588_CLOCK_TARGET_LO)
Reload High-DWORD Register (1588_CLOCK_TARGET_RELOAD_HI)
1588 Clock Target Reload/Add Low-DWORD Register
(1588_CLOCK_TARGET_RELOAD_LO)
occurs. When low, the Clock Target Low and High Registers are
incremented by the Clock Target Reload Low Register when a clock target
compare event occurs.
0: Reload upon a clock target compare event
1: Increment upon a clock target compare event
The 1588_GPIO_OE[9] bit in the
Configuration Register (GPIO_CFG)
GPIO output to be controlled by the 1588 block.
The polarity of the pulse or level is set by the
GPIO_EVENT_POL_9 bit in the
Register
GPIO buffer type.
The 1588_GPIO_OE[8] bit in the
Configuration Register (GPIO_CFG)
GPIO output to be controlled by the 1588 block.
The polarity of the pulse or level is set by the
GPIO_EVENT_POL_8 bit in the
Register
GPIO buffer type.
(GPIO_CFG). The GPIOBUF[9] bit still determines the
(GPIO_CFG). The GPIOBUF[8] bit still determines the
1588 Clock Target High-DWORD Register
and
DESCRIPTION
are loaded from the
1588 Clock Target Low-DWORD Register
DATASHEET
when a clock target compare event
General Purpose I/O Configuration
General Purpose I/O Configuration
General Purpose I/O
General Purpose I/O
225
must be set in order for the
must be set in order for the
1588 Clock Target
is already set
1588
and
TYPE
R/W
R/W
R/W
R/W
Revision 1.7 (06-29-10)
DEFAULT
00b
00b
1b
0b
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