Zeus SSD Functional Blocks
Functional Description
Zeus Ultra DMA Solid State Drives
15
3
I/O
D07
HOST DATA 7
Pins 3 through 18 (16 lines (15-0)) carry the
data between the controller and the host.
The low 8 lines transfer commands and the
ECC information between the host and the
controller.
4
I/O
D08
HOST DATA 8
5
I/O
D06
HOST DATA 6
6
I/O
D09
HOST DATA 9
7
I/O
D05
HOST DATA 5
8
I/O
D10
HOST DATA 10
9
I/O
D04
HOST DATA 4
10
I/O
D11
HOST DATA 11
11
I/O
D03
HOST DATA 03
12
I/O
D12
HOST DATA 12
13
I/O
D02
HOST DATA 02
14
I/O
D13
HOST DATA 13
15
I/O
D01
HOST DATA 01
16
I/O
D14
HOST DATA 14
17
I/O
D00
HOST DATA 0
18
I/O
D15
HOST DATA 15
19
Ground
GND
—
Ground
20
—
—
—
No connection. Reserved for connector key.
21
O
DREQ
DMA REQUEST
Not used
22
Ground
GND
—
Ground
23
I
-IOWR
I/O WRITE
This I/O Write strobe pulse is used to clock
I/O data or commands on the drive data bus
into the Drive controller registers when the
drive is configured to use the I/O interface.
The clocking will occur on the negative to
positive edge of the signal (trailing edge).
24
Ground
GND
—
Ground
25
I
-IORD
I/O READ
This is a Read strobe generated by the host.
The signal gates I/O data or status on the
host bus and strobes the data from the
controller into the host on the low to high
transition (trailing edge).
26
Ground
GND
—
Ground
Continued
Table 4.
ATA (IDE) Connector Pinout Configuration (Continued)
Pin
Pin Type
Signal Symbol
Signal Name
Signal Description
