DP8390DN National Semiconductor, DP8390DN Datasheet - Page 16

• Manufacturer Part Number: DP8390DN
• Description: IC NIC (NETWORK INT CTRL)48-DIP
• Manufacturer: National Semiconductor

Specifications of DP8390DN

• Controller Type: Network Interface Controller (NIC)
• Voltage - Supply: 5V
• Current - Supply: 40mA
• Mounting Type: Through Hole
• Package / Case: 48-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Operating Temperature: -
• Interface: -
• Other names: *DP8390DN

9 0 Remote DMA
(Continued)
Remote DMA Autoinitialization from Buffer Ring
TL F 8582– 59
10 1 REGISTER ADDRESS MAPPING
10 0 Internal Registers
All registers are 8-bit wide and mapped into two pages
which are selected in the Command Register (PS0 PS1)
Pins RA0–RA3 are used to address registers within each
page Page 0 registers are those registers which are com-
monly accessed during NIC operation while page 1 registers
are used primarily for initialization The registers are parti-
tioned to avoid having to perform two write read cycles to
access commonly used registers
TL F 8582– 60
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