EVB9311 SMSC, EVB9311 Datasheet - Page 54

• Manufacturer Part Number: EVB9311
• Description: EVALUATION BOARD LAN9311-NU
• Manufacturer: SMSC
• Series: 0133r

Specifications of EVB9311

• Main Purpose: Interface, Ethernet
• Embedded: No
• Utilized Ic / Part: LAN9311
• Primary Attributes: 2 Ports, 100BASE-TX/10BASE-T, Managed
• Secondary Attributes: 2 PHYs with HP Auto-MDIX, Auto- Flow Control, 32-bit CRC, MDI/MDI-X
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 638-1076

Revision 1.7 (06-29-10)
5.2.8
5.2.9
Software Interrupt
A general purpose software interrupt is provided in the top level
and
(INT_STS)
This interrupt provides an easy way for software to generate an interrupt, and is designed for general
software usage.
Device Ready Interrupt
A device ready interrupt is provided in the top-level
Enable Register
indicates that the LAN9311/LAN9311i is ready to be accessed after a power-up or reset condition.
Writing a 1 to this bit in the
In order for a device ready interrupt event to trigger the external IRQ interrupt pin, bit 30 of the
Enable Register (INT_EN)
Interrupt Configuration Register
Interrupt Enable Register
is generated when SW_INT_EN (bit 31) of the
(INT_EN). The READY interrupt (bit 30) of the
must be set, and IRQ output must be enabled via bit 8 (IRQ_EN) of the
Interrupt Status Register (INT_STS)
(INT_EN). The SW_INT interrupt (bit 31) of the
(IRQ_CFG).
DATASHEET
54
Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
Interrupt Status Register (INT_STS)
Interrupt Enable Register (INT_EN)
will clear it.
Interrupt Status Register (INT_STS)
Interrupt Status Register (INT_STS)
Interrupt Status Register
SMSC LAN9311/LAN9311i
and
Datasheet
Interrupt
Interrupt
is set.