PC-SDD32H, 64H,128H, 192H, 320H, 500H, 1000H
CONTEC CO., LTD.
- 4-
Connector Pin Assignment
Pin Signal Function I/O Pin Signal Function I/O
1RESET- Bus Reset I2GND Signal Ground
3DB7 Data Bus Bit 7 I/O 4DB8 Data Bus Bit 8 I/O
5DB6 Data Bus Bit 6 I/O 6DB9 Data Bus Bit 9 I/O
7DB5 Data Bus Bit 5 I/O 8DB10 Data Bus Bit 10 I/O
9DB4 Data Bus Bit 4 I/O 10 DB11 Data Bus Bit 11 I/O
11 DB3 Data Bus Bit 3 I/O 12 DB12 Data Bus Bit 12 I/O
13 DB2 Data Bus Bit 2 I/O 14 DB13 Data Bus Bit 13 I/O
15 DB1 Data Bus Bit 1 I/O 16 DB14 Data Bus Bit 14 I/O
17 DB0 Data Bus Bit 0 I/O 18 DB15 Data Bus Bit 15 I/O
19 GND Signal Ground I/O 20 KEY Key Pin
21 Open 22 GND Signal Ground
23 IOW- Host I/O Write I24 GND Signal Ground
25 IOR- Host I/O Read I26 GND Signal Ground
27 IORDY I/O ch RDY O28 Reserved
29 Reserved O30 GND Signal Ground
31 INTRQ+ Interrupt Request O32 IOCS16- Drive 16 Bit I/O O
33 ADD1 Host Address 1 I34 PDIAG- Passed Diagnostic I/O
35 ADD0 Host Address 0 I36 ADD2 Host Address 2 I
37 CSO- Chip Select 0 I38 CS1- Chip Select 1 I
39 DASP- Active (LED) O40 GND +5V Return
41 +5V +5VDC 42 +5V +5VDC
43 GND +5V Return 44 Reserved
Write Access Mean Time Before Failure
The PC-SDD H series accesses the same sector when overwriting a
file. If a write error occurs, a substitute sector is used (290
substitute sectors are provided).
Accordingly, the mean time before failure for write access is the
time until all of the substitute sectors are used up.
The calculation formula is different depending on whether the size
of the file being written to is less than or greater than 32MB.
