Memory and PCMCIA Control Module

Figure 10-3shows the rate of the shift registers during DRAM nCAS timing for a single-beat transaction.

Figure 10-3. DRAM Single-Beat Transactions

CPU Clock

Memory Clock

nRAS

nCAS

ADDR

ROW

COL

Reads:

Latch Input Data

nOE

TRP

ROW

Input Data

DO

Writes:

 

nWE

 

Write Data

DO

Contents of DRAM register fields:

last

time

first

 

 

 

MDCAS1 = 11 0001 1000 11000 (binary)

MDCAS0 = 0110 0011 0001 1000 1100 0110 0000 0111 (binary)

MDCNFG:TRP = 4 MDCNFG:CDB2 = 1

TDL = 00

 

 

A4777-01

10-16

SA-1100 Developer’s Manual

Page 130
Image 130
Intel SA-1100 manual Addr, Mdcnfgtrp = 4 MDCNFGCDB2 =