Sdram Dimm Interface; Sdram Dimm) - Sharp AR-P13 Service Manual

1.5

SDRAM DIMM Interface

(J10: Printer Board
Pin No.
1, 2 GND
3-10 DQ0, 32, 1, 33, 2, 34, 3, 35
11, 12 +3.3V
13-20 DQ4, 36, 5, 37, 6, 38, 7, 39
21, 22 GND
23-26 CAS0, 4, 1, 5
27, 28 +3.3V
29-34 A0, 3, 1, 4, 2, 5
35, 36 GND
37-44 DQ8, 40, 9, 41, 10, 42, 11, 43
45, 46 +3.3V
47-54 DQ12, 44, 13, 45, 14, 46, 15, 47
55, 56 GND
57-60 Not used
61 CLK1
62 CKE
63, 64 +3.3V
65 RAS
66 CAS
67 WE
68 Not used
69 CS
70-73 Not used
74 CLK2
75, 76 GND
77-80 Not used
81, 82 +3.3V
83-90 DQ16, 48, 17, 49, 18, 50, 19, 51
91, 92 GND
93-100 DQ20, 52, 21, 53, 22, 54, 23, 55
101, 102 +3.3V
103-105 A6, 7, 8
106 BANK
107, 108 GND
109-112 A9, 10, 11
113, 114 +3.3V
115-118 CAS2, 6, 3, 7
119, 120 GND
121-128 DQ24, 56, 25, 57, 26, 58, 27, 59
129, 130 +3.3V
131-138 DQ28, 60, 29, 61, 30, 62, 31, 63
139, 140 GND
141 SDA
142 SCL
143, 144 +3.3V
↔ ↔ ↔ ↔
↔
Signal Name

SDRAM DIMM)

Direction
- GND
↔
P OR Data signal
- +3.3V power
↔
P OR Data signal
- GND
P → OR
Column address strobe signal
- +3.3V power
P → OR
Address signal
- GND
↔
P OR Data signal
- +3.3V power
↔
P OR Data signal
- GND
P → OR
Clock 1
P → OR
Clock enable signal
- +3.3V power
P → OR
Row address strobe signal
P → OR
Column address strobe signal
P → OR
Write enable signal
P → OR
Chip select signal
P → OR
Clock 2
- GND
- +3.3V power
↔
P OR Data Signal
- GND
↔
P OR Data signal
- +3.3V power
P → OR
Address signal
P → OR
Bank signal
- GND
P → OR
Address signal
- +3.3V power
P → OR
Column address strobe signal
- GND
↔
P OR Data signal
- +3.3V power
↔
P OR Data signal
- GND
↔
P OR Signal data I/O signal
P → OR
Serial clock
- +3.3V power
5-8
Note