LAN9312 datasheet(227/458 Pages) SMSC

227 / 458 page

High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface

Datasheet

SMSC LAN9312

227

Revision 1.2 (04-08-08)

DATASHEET

1588 Port 0(Host MAC) TX Interrupt (1588_MII_TX_INT)

This interrupt indicates that a packet from the Host MAC to the switch fabric

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.

R/WC

1588 GPIO9 Interrupt (1588_GPIO9_INT)

This interrupt indicates that an event on GPIO9 occurred and the 1588 clock

was captured. These interrupts are configured through the General Purpose

I/O Configuration Register (GPIO_CFG) register.

Note:

As 1588 capture inputs, GPIO inputs are edge sensitive and must

be active for greater than 40 nS to be recognized as interrupt

inputs.

R/WC

1588 GPIO8 Interrupt (1588_GPIO8_INT)

This interrupt indicates that an event on GPIO8 occurred and the 1588 clock

was captured. These interrupts are configured through the General Purpose

I/O Configuration Register (GPIO_CFG) register.

Note:

As 1588 capture inputs, GPIO inputs are edge sensitive and must

be active for greater than 40 nS to be recognized as interrupt

inputs.

R/WC

1588 Timer Interrupt (1588_TIMER_INT)

This interrupt indicates that the 1588 clock equaled or passed the Clock

Target value in the 1588 Clock Target High-DWORD Register

(1588_CLOCK_TARGET_HI) and 1588 Clock Target Low-DWORD Register

(1588_CLOCK_TARGET_LO).

Note:

This bit is also cleared by an active edge on GPIO[9:8] if enabled.

For the clear function, GPIO inputs are edge sensitive and must be

active for greater than 40 nS to be recognized as a clear input.

Refer to Section 13.2, "GPIO Operation," on page 162 for

additional information.

R/WC

BITS

DESCRIPTION

TYPE

DEFAULT

LAN9312 Datasheet(PDF) 227 Page - SMSC Corporation

LAN9312 Datasheet(HTML) 227 Page - SMSC Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL