RTL8019AS Ver la hoja de datos (PDF) - Realtek Semiconductor

Número de pieza

componentes Descripción

Lista de partido

RTL8019AS

Realtek Full-Duplex Ethernet Controller with Plug and Play Function (RealPNP)

Realtek Semiconductor 

SPECIFICATION

RTL8019AS

CONFIG1: RTL8019AS Configuration Register 1 (04H; Type=R except Bit7=R/W)

Bit

Symbol

Description

7

IRQEN IRQ Enable:

This bit controls the state of the interrupt request line selected by IRQS2-0. If this bit is

set, the interrupt line goes high upon an interrupt request and will be low when there is

no interrupt request.

The interrupt line will be forced to tri-state if this bit is reset.

This bit's power-up initial value is 1 and may be modified by software if

EEM1=EEM0=1 in 9346CR register.

6-4

IRQS2-0 IRQ Select :

These 3 bits select one of INT7-0 to reflect the RTL8019AS's interrupt request status.

All unselected interrupt lines will be tri-stated.

IRQS2

0

0

0

0

1

1

1

1

IRQS1

0

0

1

1

0

0

1

1

IRQS0

0

1

0

1

0

1

0

1

Interrupt Line

INT0

INT1

INT2

INT3

INT4

INT5

INT6

INT7

Assigned ISA IRQ

IRQ2/9

IRQ3

IRQ4

IRQ5

IRQ10

IRQ11

IRQ12

IRQ15

3-0

IOS3-0 Select I/O base address.

IOS3

0

0

0

0

1

1

1

1

0

0

0

0

1

1

1

1

IOS2

0

0

0

0

0

0

0

0

1

1

1

1

1

1

1

1

IOS1

0

0

1

1

0

0

1

1

0

0

1

1

0

0

1

1

IOS0

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

I/O Base

300H

320H

340H

360H

380H

3A0H

3C0H

3E0H

200H

220H

240H

260H

280H

2A0H

2C0H

2E0H

8019AS.doc

19

2001-04-02

Share Link: