smc256bfd6e STMicroelectronics, smc256bfd6e Datasheet - Page 34

• Manufacturer Part Number: smc256bfd6e
• Description: 32mbyte, 64mbyte, 128mbyte, 256mbyte, 512mbyte, 1gbyte, 2gbyte, And 4gbyte 3.3/5v Supply Compactflash Card
• Manufacturer: STMicroelectronics

Card Configuration
Table 25.
6.1
6.1.1
6.1.2
6.1.3
34/91
–CE2 –CE1 –REG –OE –WE A10
X
X
X
X
X
X
X
X
0
0
0
0
0
0
0
0
CompactFlash Memory Card Configuration Registers Decoding
Configuration Option Register (200h in Attribute Memory)
The Configuration Option Register is used to configure the Card’s interface, address
decoding and interrupt to the Card (see
SRESET
Setting the SRESET bit to ‘1’ and returning the bit ‘0’ places the CompactFlash Storage
Card in the Reset state. Setting this bit to ‘1’ is equivalent to asserting the RESET signal
except that the SRESET bit is not cleared. Returning the SRESET bit to ‘0’ leaves the
CompactFlash Storage Card in the same un-configured Reset state as after a power-up and
hardware reset.
This bit is set to ‘0’ at power-up and taking the Card through a hardware reset.
LevlREQ
This bit is set to one (1) when Level Mode Interrupt is selected, and zero (0) when Pulse
Mode is selected. Set to zero (0) after Power Up.
Conf5 - Conf0 (Configuration Index)
These bits are used to select the operation mode of the Card as shown in
is set to ‘0’ after Power Up.
Table 26.
Operation
0
0
0
0
0
0
0
0
R/W
0
1
0
1
0
1
0
1
Configuration Option Register (default value: 00h)
SRESET
1
0
1
0
1
0
1
0
D7
0
0
0
0
0
0
0
0
LevlREQ
A9
1
1
1
1
1
1
1
1
D6
A8-
A4
00
00
00
00
00
00
00
00
Conf5
A3 A2 A1 A0
0
0
0
0
0
0
0
0
D5
Table
0
0
0
0
1
1
1
1
26).
Conf4
0
0
1
1
0
0
1
1
D4
0
0
0
0
0
0
0
0
Conf3
Configuration Option Register Read
Configuration Option Register Write
D3
Pin Replacement Register Read
Pin Replacement Register Write
Socket and Copy Register Read
Socket and Copy Register Write
Card Status Register Read
Card Status Register Write
Selected Register
Conf2
D2
Table
Conf1
D1
SMCxxxBF
27. This bit
Conf0
D0