EVB9221-MINI SMSC, EVB9221-MINI Datasheet - Page 83

• Manufacturer Part Number: EVB9221-MINI
• Description: EVALUATION BOARD LAN9221-ABZJ
• Manufacturer: SMSC

Specifications of EVB9221-MINI

• Main Purpose: Interface, Ethernet Controller (PHY and MAC)
• Embedded: No
• Utilized Ic / Part: LAN9221
• Primary Attributes: 1 Port, 100BASE-TX/10BASE-T
• Secondary Attributes: 16-Bit, HP Auto-MDIX, Full and Half Duplex Support, 32-Bit CRC
• Processor To Be Evaluated: LAN9221
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 638-1074

High-Performance 16-bit Non-PCI 10/100 Ethernet Controller with Variable Voltage I/O
Datasheet
SMSC LAN9221/LAN9221i
5.3.3
30-26
BITS
31
25
24
23
22
21
20
19
18
17
16
15
14
13
Software Interrupt (SW_INT). This interrupt is generated when the
SW_INT_EN bit is set high. Writing a one clears this interrupt.
Reserved
TX Stopped (TXSTOP_INT). This interrupt is issued when STOP_TX bit
in TX_CFG is set, and the transmitter is halted.
RX Stopped (RXSTOP_INT).
halted.
RX Dropped Frame Counter Halfway (RXDFH_INT). This interrupt is
issued when the RX Dropped Frames Counter counts past its halfway
point (7FFFFFFFh to 80000000h).
Reserved
TX IOC Interrupt (TX_IOC). When a buffer with the IOC flag set has
finished being loaded into the TX FIFO, this interrupt is generated.
RX DMA Interrupt (RXD_INT). This interrupt is issued when the amount
of data programmed in the RX DMA Count (RX_DMA_CNT) field of the
RX_CFG register has been transferred out of the RX FIFO.
GP Timer (GPT_INT). This interrupt is issued when the General Purpose
timer wraps past zero to FFFFh.
PHY (PHY_INT).
Power Management Event Interrupt (PME_INT). This interrupt is issued
when a Power Management Event is detected as configured in the
PMT_CTRL register. This interrupt functions independent of the PME
signal, and will still function if the PME signal is disabled. Writing a '1'
clears this bit regardless of the state of the PME hardware signal.
Notes:
TX Status FIFO Overflow (TXSO).
FIFO overflows.
Receive Watchdog Time-out (RWT).
packet larger than 2048 bytes has been received.
Receiver Error (RXE).
error. Please refer to
description of the conditions that will cause an RXE.
Transmitter Error (TXE).
transmitter has encountered an error. Please refer to
"Transmitter Errors," on page
will cause a TXE.
INT_STS—Interrupt Status Register
This register contains the current status of the generated interrupts. Writing a 1 to the corresponding
bits acknowledges and clears the interrupt.
Detection of a Power Management Event, and assertion of the PME
signal will not wakeup the LAN9221/LAN9221i. The LAN9221/LAN9221i
will only wake up when it detects a host write cycle of any data to the
BYTE_TEST register.
The Interrupt Deassertion interval does not apply to the PME interrupt.
Offset:
Indicates a PHY Interrupt event.
Section 3.13.5, "Receiver Errors," on page 67
Indicates that the receiver has encountered an
DESCRIPTION
When generated, indicates that the
T
62, for a description of the conditions that
his interrupt is issued when the receiver is
58h
DATASHEET
Generated when the TX Status
Interrupt is generated when a
83
Size:
Section 3.12.7,
for a
32 bits
R/WC
R/WC
R/WC
R/WC
R/WC
R/WC
R/WC
R/WC
R/WC
R/WC
R/WC
R/WC
TYPE
RO
RO
RO
Revision 2.7 (03-15-10)
DEFAULT
0
0
0
0
0
0
0
0
0
0
0
0
0
0
-