Ampro Corporation 700 manual CompactFlash Adapter J23

Chapter 3 Hardware

CompactFlash Adapter (J23)

The board contains a Type I or II PC card socket, which allows for the insertion of a CompactFlash Card. The CompactFlash Card acts as a standard IDE Drive and is connected to the Secondary IDE bus. If a CompactFlash card is installed, it is the only device using the secondary IDE bus. A Jumper is used to select the Master/Slave mode. Refer to Table 2-5, Jumper Settings for more information.

CAUTION To prevent system hangs when using older CompactFlash cards, ensure your CompactFlash is compatible with UDMA 100 IDE hard disk drives. Consult your CompactFlash card vendor for UDMA 100 compatibility.

Table 3-10. CompactFlash Interface Pin/Signal Descriptions (J23)

Pin #	Signal	Description
1	GND	Digital Ground
2	SDD3	Secondary Disk Data 3 –These signals (D0-D15) carry the Data, Commands, and
		Status between the host and the controller. D0 is the LSB of the even Byte of the
		Word. D8 is the LSB of the Odd Byte of the Word. All Task File operations
		occur in byte mode on the low order bus D0-D7, while all data transfers are 16 bit
		using D0-D15 to provide the disk data signals.
3	SDD4	Secondary Disk Data 4 – Refer to SDD3 on pin-2 for more information.
4	SDD5	Secondary Disk Data 5 – Refer to SDD3 on pin-2 for more information.
5	SDD6	Secondary Disk Data 6 – Refer to SDD3 on pin-2 for more information.
6	SDD7	Secondary Disk Data 7 – Refer to SDD3 on pin-2 for more information.
7	SDCS1*	Secondary Chip Select 1 – This signal, along with CE2*, is used to select the card
		and indicate to the card when a byte or word operation is being performed. This
		signal accesses the even byte or odd byte of the word depending on A0 and CE2*.
8, 10	NC	Not connected
9	GND	Digital Ground
11, 12	NC	Not connected
13	VCC	+5 volts +/-5%
14, 15	NC	Not connected
16, 17	NC	Not connected
17	NC	Not connected
18	SDA2	Secondary Address select 2 – One of three signals (0 – 2) used to select one of
		eight registers in the Task File. The host grounds all remaining address lines.
19	SDA1	Secondary Address select 1 – Refer to A2 on pin-18 for more information.
20	SDA0	Secondary Address select 0 – Refer to A2 on pin-18 for more information.
21	SDD0	Secondary Disk Data 0 – Refer to SDD3 on pin-2 for more information.
22	SDD1	Secondary Disk Data 1 – Refer to SDD3 on pin-2 for more information.
23	SDD2	Secondary Disk Data 2 – Refer to SDD3 on pin-2 for more information.
24	NC	Not connected (IOCS16*)

ReadyBoard 700 Reference Manual 35