LAN9313 Datasheet, PDF (189/398 Pages) SMSC Corporation – Three Port 10/100 Managed Ethernet Switch with MII

Three Port 10/100 Managed Ethernet Switch with MII
Datasheet
13.1.4.23 1588 Interrupt Status and Enable Register (1588_INT_STS_EN)
Offset:
198h
Size:
32 bits
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 Interrupt Status Register (INT_STS). Writing
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 Interrupt Enable Register (INT_EN) must also
be set in order for an actual system level interrupt to occur. Refer to Chapter 5, "System Interrupts,"
on page 52 for additional information.
BITS
DESCRIPTION
31:25 RESERVED
24 1588 Port 2 RX Interrupt Enable (1588_PORT2_RX_EN)
23 1588 Port 2 TX Interrupt Enable (1588_PORT2_TX_EN)
22 1588 Port 1 RX Interrupt Enable (1588_PORT1_RX_EN)
21 1588 Port 1 TX Interrupt Enable (1588_PORT1_TX_EN)
20 1588 Port 0(External MII) RX Interrupt Enable (1588_MII_RX_EN)
19 1588 Port 0(External MII) TX Interrupt Enable (1588_MII_TX_EN)
18 GPIO9 1588 Interrupt Enable (1588_GPIO9_EN)
17 GPIO8 1588 Interrupt Enable (1588_GPIO8_EN)
16 1588 Timer Interrupt Enable (1588_TIMER_EN)
15:9 RESERVED
8 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.
7 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.
6 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.
5 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.
4 1588 Port 0(External MII) RX Interrupt (1588_MII_RX_INT)
This interrupt indicates that a packet from the switch fabric to the External
MII the matches the configured PTP packet and the 1588 clock was
captured.
Note: For Port 0, receive is defined as data from the switch fabric, while
transmit is to the switch fabric.
TYPE
RO
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
RO
R/WC
R/WC
R/WC
R/WC
R/WC
DEFAULT
-
0b
0b
0b
0b
0b
0b
0b
0b
0b
-
0b
0b
0b
0b
0b
SMSC LAN9313/LAN9313i
189
DATASHEET
Revision 1.2 (04-08-08)