DP8390 NSC [National Semiconductor], DP8390 Datasheet - Page 16

• Manufacturer Part Number: DP8390
• Description: NIC Network Interface Controller
• Manufacturer: NSC [National Semiconductor]

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
16