STK1000/Compact Flash connector
From AVRFreaks Wiki
Compact Flash memory are used to connect secondary storage to products. Secondary storage can be used to store operating systems and it can be used to store data such as music or movies. Hand held GPS devices may use the memory card to store maps or tourist guides.
Compact Flash memory cards can also be used to connect GPS receivers, WLAN modems and other IO devices. STK1000 is not designed for this kind of IO devices.
The CF connector is designed to work in memory mode and True ide mode, not in I/O mode. Please refer the help files for the daughter board in use and the data sheet for the part mounted to get a full description of the connection of the compact flash connector
A Compact Flash (CF) connector is located under the motherboard below the daughter board.
Signals
Please note that GPIO[27..29] may be connected through switches on the daughter board. Confer the help files for the daughter board to see how these GPIO lines are handled.
Compact Flash Signal | STK1000 Signal |
---|---|
A[0..11] | EBI_A[0..11] |
D[0..15] | EBI_D[0..15] |
BVD[0, 1] | 3.3V (1) |
CD1 | GPIO29 (1) |
CD2 | Not connected |
CE1 | EBI_CFCE1 |
CE2 | EBI_CFCE2 |
CSEL | EBI_NCS4/CFCS0 |
INPACK | GPIO28 (1) |
IORD | EBI_NWR1/NBS1/CFIOR |
IOWR | EBI_NWR3/NBS3/CFIOW |
OE | EBI_NRD/NOE/CFOE |
READY | EIM_EXTINT_E |
REG | EBI_A22 |
RESET | RESET_N |
VS1 | GPIO27 (1) |
VS2 | CF_VS2 |
WAIT | EBI_NWAIT |
WE | EBI_NWR0/NWE/CFWE |
WP | CF_WP |
(1) 47 KOHM pull-up resistor to 3.3V
Interfaces
Refer the help files of the daughter board to find out what interfaces are used and which peripheral on the processor are connected to the interface.