Motorola MC68VZ328 User Manual

Page 338

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19-22

MC68VZ328 User’s Manual

AC Electrical Characteristics

19.3.17

Page-Miss SDRAM CPU Write Cycle (CAS

Latency = 1)

Figure 19-18 shows the timing diagram for the page-miss SDRAM CPU write cycle for 8-bit SDRAM.
The signal values and units of measure for this figure are found in Table 19-16 on page 19-31. Detailed
information about the operation of individual signals can be found in both Chapter 8, “LCD Controller,”
and Chapter 7, “DRAM Controller.”

Figure 19-18. Page-Miss SDRAM CPU Write Cycle Timing Diagram

S0

17

S2

S4

S4

S6

S7

S5

S4

S3

S1

SDCLK

RAS

SCKEN

D[15:0]

CAS

A[16:1]/MD[15:0]

SDA10

CS

WE

DQM

DTACK

Active

Command

Precharge
Command

Write

Command

8

Bank

Row

Col

1=All Bank

11

15

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