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Ampro Corporation XTX 820 Benutzerhandbuch

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Chapter 3 
Hardware
46
Reference Manual
XTX 820
IDE and Auxiliary Interface (J4)
The J4 connector has 100 pins and is used for Primary IDE, Secondary IDE, Ethernet port, RTC/Battery,
speaker, power management, SMBus, and power management interfaces.
IDE Ports
• Supports one Primary EIDE channel (Secondary IDE channel not connected)
• Supports EIDE Ultra DMA 33/66/100 in Master Mode
• Master mode PCI supporting EIDE devices
• Supports ATAPI compliant devices including DVD devices
• PIO IDE transfers up to 14 Mbytes/sec
• Bus Master IDE transfers up to 100 Mbps
The standard 40-pin cable pin-outs are listed in Table 3-24 for J3 connector pin reference.  The single
Primary channel can be routed to the IDE connector on the custom baseboard per the application
requirements.
Table 3-24.  Simplified Primary IDE Interface Pin/Signal Descriptions (J4)
J4
Pin #
Signal
40-
Pin #
Description
98
HDRST*
1
Hard Reset – Low active hardware reset (RSTDRV inverted)
GND
2
Ground
96
PIDE_D7
3
Disk Data – These signals (0 to 15) provide the disk data signals
92
PIDE_D8
4
Disk Data 8 – Refer to D7, pin-3, for more information.
88
PIDE_D6
5
Disk Data 6 – Refer to D7, pin-3, for more information.
86
PIDE_D9
6
Disk Data 9 – Refer to D7, pin-3, for more information.
84
PIDE_D5
7
Disk Data 5 – Refer to D7, pin-3, for more information.
80
PIDE_D10
8
Disk Data 10 – Refer to D7, pin-3, for more information.
78
PIDE_D4
9
Disk Data 4 – Refer to D7, pin-3, for more information.
76
PIDE_D11
10
Disk Data 11 – Refer to D7, pin-3, for more information.
74
PIDE_D3
11
Disk Data 3 – Refer to D7, pin-3, for more information.
72
PIDE_D12
12
Disk Data 12 – Refer to D7, pin-3, for more information.
70
PIDE_D2
13
Disk Data 2 – Refer to D7, pin-3, for more information.
68
PIDE_D13
14
Disk Data 13 – Refer to D7, pin-3, for more information.
64
PIDE_D1
15
Disk Data 1 – Refer to D7, pin-3, for more information.
62
PIDE_D14
16
Disk Data 14 – Refer to D7, pin-3, for more information.
60
PIDE_D0
17
Disk Data 0 – Refer to D7, pin-3, for more information.
58
PIDE_D15
18
Disk Data 15 – Refer to D7, pin-3, for more information.
GND
19
Ground
NC
Key
20
Key pin plug
56
PIDE_DRQ
21
DMA Request – Used for DMA transfers between host and drive
(direction of transfer controlled by IOR* and IOW*).  Also used in
an asynchronous mode with ACK*.  Drive asserts an IRQ when
ready to transfer or receive data.