Table 7-2. 16 Mbit Sdram-256 (16-Bit) And 512 (8-Bit) Page Size; Table 7-3. 64 Mbit Sdram-256 (16-Bit) And 512 (8-Bit) Page Size - Motorola MC68VZ328 User Manual

Table 7-2 through Table 7-5 on page 7-6 provide recommendations for MC68VZ328–to–SDRAM
connections and for selecting multiplexing options for different types of SDRAM.
Table 7-2. 16 Mbit SDRAM—256 (16-Bit) and 512 (8-Bit) Page Size
SDRAM
A0 A1
Pins
A1/ A2/
VZ Pins
MD0 MD1
PA11 PA12
Row
Address
Options
PA1 PA2
Column
Address
Options
(16-Bit)
PA0 PA2
Column
Address
Options
(8-Bit)
Note: X = "don't care"
Table 7-3. 64 Mbit SDRAM—256 (16-Bit) and 512 (8-Bit) Page Size
SDRAM
A0 A1
Pins
A1/ A2/
VZ Pins MD MD
0 1
PA PA
Row
11 12
Address
Options
PA PA
Column
1 2
Address
Options
(16-Bit)
PA PA
Column
0 2
Address
Options
(8-Bit)
Note: X = "don't care"
A2 A3 A4
A3/ A4/ A5/
MD2 MD3 MD4
PA13 PA14 PA15
PA3 PA4 PA5
PA3 PA4 PA5
A2 A3 A4 A5
A3/ A4/ A5/ A6/
MD MD MD MD
2 3 4 5
PA PA PA PA
13 14 15 16
PA PA PA PA
3 4 5 6
PA PA PA PA
3 4 5 6
DRAM Controller
A5 A6 A7
A6/ A7/ A8/ A9/
MD5 MD6 MD7 MD8
PA16 PA17 PA18 PA10
PA6 PA7 PA8
PA6 PA7 PA8 PA1
A6 A7 A8 A9
A7/ A8/ A9/ A10
MD MD MD /MD
6 7 8 9
PA PA PA PA
17 18 10 9
PA PA X X
7 8
PA PA PA X
7 8 1
DRAM Controller Operation
A8 A9 A10 BS
A10/ A11/ A12/
MD9 MD10 MD11
PA9 PA19 PA20
X X 0 PA20
X 0 PA20
A10 A11 BS0 BS1
A11 A12 A13/ A14/
/MD /MD MD
10 11 12
PA PA PA21 PA22
19 20
0 X PA21 PA22
0 X PA21 PA22
MD
13
7-5