83C795 Datasheet, PDF (79/136 Pages) List of Unclassifed Manufacturers – Ethernet System Controller

83C795
LAN CONTROLLER OVERVIEW
CLK
STATE
0 01 12 3 4 1 11 1 1 1 1 1 1 1 11 12 3 4 1 1 11 1
DMASEL
ADDRESS
DATA
RAMWR
CACHE
CACHE
EVEN EVEN+1
LOW
HIGH
CACHE
CACHE
EVEN+2 EVEN+3
LOW
HIGH
CACHE
CACHE
DMA WRITES
CLK
STATE
0
DMASEL
05 5678
ADDRESS
DATA
RAMOE
CACHE
CACHE
EVEN EVEN+1
LOW
HIGH
55 5 5 5 5 5 5 5 5 5 5 5 6 7 8 5 55 5
CACHE
CACHE
EVEN+2 EVEN+3
LOW
HIGH
CACHE
CACHE
DMA READS
FIGURE 7-1. BASIC DMA CYCLES
66