Motorola MC68VZ328 用户手册
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.”
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
Command
Write
Command
8
Bank
Row
Col
1=All Bank
11
15