smc256af Numonyx, smc256af Datasheet - Page 31

• Manufacturer Part Number: smc256af
• Description: 32 Mbyte, 64 Mbyte, 128 Mbyte, 256 Mbyte And 512 Mbyte 3.3 V / 5 V Supply Compactflash? Card
• Manufacturer: Numonyx

SMCxxxAF
Table 24.
6.1
6.1.1
6.1.2
–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 (base + 00h in attribute
memory)
The Configuration Option register is used to configure the card’s interface, address
decoding and interrupt to the card (see
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 25.
Table 26.
Conf
Operation
5
0
0
0
0
0
0
0
0
0
0
0
0
R/W
Conf
4
0
0
0
0
0
1
0
1
0
1
0
1
Configuration Option register (default value: 00h)
CompactFlash memory card configurations
Conf
1
0
1
0
1
0
1
0
3
0
0
0
0
D7
X
Conf
0
0
0
0
0
0
0
0
2
0
0
0
0
LevlREQ
A9
1
1
1
1
1
1
1
1
D6
Conf
1
0
0
1
1
A8-
A4
00
00
00
00
00
00
00
00
Conf
0
0
1
0
1
Conf5
A3 A2 A1 A0
0
0
0
0
0
0
0
0
D5
Table
Secondary I/O
0
0
0
0
1
1
1
1
Primary I/O
Contiguous
Mapping
Memory
25).
mode
Conf4
I/O
0
0
1
1
0
0
1
1
D4
0
0
0
0
0
0
0
0
Conf3
Memory
D3
Configuration Option register Read
Configuration Option register Write
mode
Card
Pin Replacement register Read
Pin Replacement register Write
Socket and Copy register Read
Socket and Copy register Write
I/O
I/O
I/O
Card Status register Read
Card Status register Write
Selected register
Conf2
D2
Task file register address
1F0h - 1F7h, 3F6h - 3F7h
170h - 177h, 376h - 377h
0h - Fh, 400h - 7FFh
Card configuration
xx0h - xxFh
Table
Conf1
D1
26. This bit
Conf0
D0
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