Motorola MC68VZ328 - page 115

DRAM Controller Operation
DRAM Controller 7-5
Table 7-2 through Table7-5 on page 7-6 provide recommendations for MC68VZ328–to–SDRAM
connections and for selecting multiplexing options for different types of SDRAM.
Table 7-2. 16Mbit SDRAM—256 (16-Bit) and 512 (8-Bit) Page Size
SDRAM
Pins A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 BS
VZ Pins A1/
MD0 A2/ MD1 A3/ MD2 A4/ MD3 A5/ MD4 A6/ MD5 A7/ MD6 A8/ MD7 A9/ MD8 A10/ MD9 A11/ MD10 A12/ MD11
Row
Address
Options
PA11 PA12 PA13 PA14 PA15 PA16 PA17 PA18 PA10 PA9 PA19 PA20
Column
Address
Options
(16-Bit)
PA1 PA2 PA3 PA4 PA5 PA6 PA7 PA8 X X 0 PA20
Column
Address
Options
(8-Bit)
PA0 PA2 PA3 PA4 PA5 PA6 PA7 PA8 PA1 X 0 PA20
Note: X= “don’t care”
Table 7-3. 64Mbit SDRAM—256 (16-Bit) and 512 (8-Bit) Page Size
SDRAM
Pins A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 BS0 BS1
VZ Pins A1/ MD
0
A2/
MD
1
A3/
MD
2
A4/
MD
3
A5/
MD
4
A6/
MD
5
A7/
MD
6
A8/
MD
7
A9/
MD
8
A10
/MD
9
A11
/MD
10
A12
/MD
11
A13/
MD
12
A14/
MD
13
Row
Address
Options
PA
11 PA 12 PA 13 PA 14 PA 15 PA 16 PA 17 PA 18 PA 10 PA 9PA 19 PA 20 PA21 PA22
Column
Address
Options
(16-Bit)
PA
1PA 2PA 3PA 4PA 5PA 6PA 7PA 8X X 0 X PA21 PA22
Column
Address
Options
(8-Bit)
PA
0PA 2PA 3PA 4PA 5PA 6PA 7PA 8PA 1X 0 X PA21 PA22
Note: X = “don’t care”