Sdram power-down register = 1) -25 – Motorola MC68VZ328 User Manual

Page 341

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AC Electrical Characteristics

Electrical Characteristics

19-25

19.3.20

Page-Hit CPU Read Cycle in Power-down Mode (CAS

Latency = 1, Bit APEN of SDRAM Power-down
Register = 1)

Figure 19-21 shows the timing diagram for the page-hit CPU read cycle in power-down mode. 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 19-21. Page-Hit CPU Read Cycle in Power-down Mode Timing Diagram

S0

S2

S4

S4

S4

S4

S4

S4

S3

S1

SDCLK

RAS

SCKEN

D[15:0]

CAS

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

SDA10

CS

WE

DQM

DTACK

Read

Command

S4

S5

S6

S7

Col

7

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