CY7C68300C, CY7C68301C
CY7C68320C, CY7C68321C
Document Number: 001-05809 Rev. *K Page 26 of 44
0x09 Reserved
General Purpose I/O Pin
Output Enable
Bits 7:6
Reserved. Must be set to zero.
Bits 5:0
GPIO[5:0] Input and output control. GPIOs can be individually
set as inputs or outputs using these bits.
0 = High Z (pin is an input). The state of the signal connected
to GPIO input pins is reported in the SYSIRQ or HID data.
1 = Output enabled (pin is an output). The state of GPIO output
pins is controlled by the value in address 0x0A.
0x00
0x0A Reserved
GPIO Output Pin State
Bits 7:6
Reserved. Must be set to zero.
Bits 5:0
These bits select the value driven on the GPIO pins that are
configured as outputs in configuration address 0x09.
0 = Drive the GPIO pin LOW
1 = Drive the GPIO pin HIGH
0x00
0x0B LUN0 Identify String This byte is a pointer to the start of a 24 byte ASCII
(non-Unicode) string in the EEPROM that is used as the LUN0
device identifier. This string is used by many operating
systems as the user-visible name for the drive. If this byte is
0x00, the Identify Device data from the drive is used instead.
0x00
0x0C LUN1 Identify String This byte is a pointer to the start of a 24 byte ASCII
(non-Unicode) string in the EEPROM that is used as the LUN1
device identifier. This string is used by many operating
systems as the user-visible name for the drive. If this byte is
0x00, the Identify Device data from the drive is used instead.
0x00
0x0D Delay After Reset Number of 20 ms ticks to wait between AT2LP startup or reset,
and the first attempt to access any drives.
0x00
0x0E Reserved Bits 7:5
Must be set to zero.
0x00
Bus Powered Flag Bit 4
Enable bus powered HDD support. This bit enables the use of
DRVPWRVLD features without reporting the LUN0 device as
removable media.
0 = LUN0 is removable media or DRVPWRVLD is disabled
1 = LUN0 device is bus powered and non-removable
Enable CF UDMA Bit 3
Enable UDMA transfers for removable devices. Some CF
devices interfere with UDMA transfers when more than one
drive is connected to the ATA bus.
0 = Do not use UDMA transfers with removable devices
(UDMA signals are not connected to the CF pins).
1 = Allow UDMA transfers to be used with removable devices
(UDMA signals are connected to the CF pins).
Fixed Number of Logical Bits 2:1
Assume the presence of devices and do not perform a search
of the ATA bus to discover the number of LUNs.
00 = Search ATA bus and determine number of LUNs
01 = Assume only LUN0 present; no ATA bus search
10 = Assume LUN0 and LUN1 present; no ATA bus search
11 = Assume LUN0 and LUN1 present; no ATA bus search
Table 11. Configuration Data Organization (continued)
Byte
Address
Configuration
Item Name
Configuration
Item Description
Required
Contents
Variable
Contents
(15 strony)
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