RD

CS

RS

CHS

DB

VALID

DATA

VALID DATA

FIGURE 2. READ CYCLE

INPUT DATA

INPUT DATA

WR

CS

RS

CHS

DB

FIGURE 3. WRITE CYCLE

Note 1. Synchronous index coincident with both A and B high.

Note 2. Synchronous index coincident with both A and B low.

FIGURE 4. PCK, A, B and INDX

7566R-121405-9

PCK

(MDR0 <7> = 0)

(MDR0 <7> = 1)

A

B

INDX/

Note 1

Note 2