MD1050-DCC M-Systems Inc., MD1050-DCC Datasheet - Page 7

• Manufacturer Part Number: MD1050-DCC
• Description: Diskonchip Ide Pro Data Sheet
• Manufacturer: M-Systems Inc.

2.2
See Table 1 for the pin assignment of DiskOnChip IDE Pro.
NC = These pins are not connected internally.
RESERVED = All reserved signals must be left floating.
6
Pin No.
1.
2.
41
43
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
1
3
5
7
9
2
2
Pin Assignment
In the 40-pin version, this pin is defined as VCC to reduce the need for an external power connector. In the 44-pin version, this pin is
defined as KEY, according to the ATA standard.
DiskOnChip IDE Pro 40-pin version does not contain pins 41-44.
RESET#
HIOW#
DASP#
IORDY
HIOR#
INTRQ
Signal
CS0#
GND
VCC
GND
HD7
HD6
HD5
HD4
HD3
HD2
HD1
HD0
HA1
HA0
NC
NC
Host Address bit 1
Host Address bit 0
Interrupt Request
Drive 1 Present
Not Connected
Not Connected
Supply Voltage
Host Data bit 7
Host Data bit 6
Host Data bit 5
Host Data bit 4
Host Data bit 3
Host Data bit 1
Host Data bit 1
Host Data bit 0
Host I/O Read
Host I/O Write
Chip Select 0
Drive Active/
DiskOnChip IDE Pro Data Sheet, Rev. 1.5
Host reset
I/O Ready
Function
Ground
Ground
Table 1: Pin Assignment
Pin No.
42
44
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
2
4
6
8
2
2
40-pin
44-pin
RESERVED
IOIS16#
PDIAG#
Signal
HD10
HD11
HD12
HD13
HD14
HD15
CSEL
CS1#
GND
GND
GND
GND
GND
GND
VCC
HD8
HD9
HA2
VCC
KEY
1
Host Address bit 2
Host Data bit 10
Host Data bit 11
Host Data bit 12
Host Data bit 13
Host Data bit 14
Host Data bit 15
Supply Voltage
Host Data bit 8
Host Data bit 9
Supply Voltage
Chip Select 1
Master/Slave
CS I/O 16-bit
Diagnostics
Function
Reserved
Ground
Ground
Ground
Ground
Ground
Passed
Ground
Cut pin
91-SR-012-01-8L
Select