Motorola MC68VZ328 User Manual

Page 343

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AC Electrical Characteristics

Electrical Characteristics

19-27

19.3.22

Enter Self-Refresh Due to No Activity for 64 Clocks

(Bit RM of DRAM Control Register = 1)

Figure 19-23 shows the timing diagram for enter self-refresh due to no activity. 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 19-23. Enter Self-Refresh Due to No Activity Timing Diagram

SDCLK

RAS

SCKEN

CAS

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

SDA10

CS

WE

Precharge
Command

Auto Refresh (SCKEN = 0)

Command

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