DM9081网络接口电路

DM9008C_CKT_122507-2008-15 2

4 3 1

JP1 JP2 JPx
DVDD_33 JP1 1 JP2 1 JUMPER 2 JUMPER 2 R? 10K R0603 IO16 JP? 1 LED1 JUMPER 2 JP? 1 R0603 JUMPER 2 R1 10K

D

RST# LOW CS# LOW IOR# LOW IOW# LOW INT HIGH ACTIVE)
FOR NORMAL SYSTEM JPx OPEN , JP4 2-3 SHORT FOR X86 ISA SYSTEM 16 Bit MODE TEST JPx SHORT , JP4 2-3 SHORT FOR MDC/MDIO 16 Bit MODE TEST JP3 OPEN , JP4 OPEN
DVDD_33

ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE

(POWER RESET) (CHIP SELECT) (IO DATA READ) (IO DATA WRITE) (INTERRUPT

ON OFF ON OFF ON OFF : : : : : : 8 Bit MODE 16 Bit MODE EEPROM USE EEPROM LOW ACTIVE HIGH ACTIVE

USE USE USE NOT INT INT

D

IOW# IOR# CS#

P_IN_5V JP4

JP5 HEADER/16X2

C4 60pF C0603 U1 CON3 DVDD_33 LINK_LED IOWAIT LED2 LINK_LED 1 2 3

C5 60pF C0603

C6 60pF C0603

IOW# IOR# IO16

IOWAIT CS# CMD INT RST#

LED2 2 1 LINK/ACT R4 510 R0603

DGND