Memory Configuration Examples; Figure 24-35 Single 64 Mbit (4M X 16) Connection Diagram (Iam = 1); Table 24-15 Single 4M X 16 Control Register Values - Motorola DragonBall MC9328MX1 Reference Manual

24.8.2.6 Memory Configuration Examples

Twelve different examples of SDRAM configurations are provided in this section and shown in
Figure 24-35 on page 24-39 through Figure 24-56 on page 24-68. These examples are 64 Mbit, 128 Mbit,
and 256 Mbit SDRAM memories in single x16, dual x16, and single x32 configurations. All examples use
bank and non-bank interleaving for address configuration. Each figure is accompanied with the control
register values in Table 24-15 on page 24-39 through Table 24-50 on page 24-67.
Figure 24-35. Single 64 Mbit (4M x 16) Connection Diagram (IAM = 1)
MOTOROLA
Table 24-15. Single 4M x 16 Control Register Values
Control Field
Density
Page Size
ROW
COL
DSIZ
IAM
A17
A16
MA[11:10],A[10:1]:
RAS
CAS
CS2/CSD0
SDWE
DQM3
DQM2
DQM1
DQM0
DQ[15:0]
SDCLK
SDCKE
SDRAM
CONTROLLER
SDRAM Memory Controller
Value
8 Mbyte
512
12
8
16 (D[15:0])
Bank Interleaved
BA1
BA0
A[11:0]
RAS
CAS
CS
WE
DQMH
DQML
DQ[15:0]
CLK
CKE
4M x 16
SDRAM
SDRAM Operation
24-39