smc256af Numonyx, smc256af Datasheet - Page 66

• 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

CF-ATA command description
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Table 65.
Table 66.
Table 67.
1. Mode = transfer mode number.
Command (7)
Sect Num (3)
Sect Cnt (2)
Cyl High (5)
Feature
Cyl Low (4)
PIO default mode, disable
Feature (1)
C/D/H (6)
PIO flow control transfer
9Ah
01h
03h
55h
69h
81h
96h
97h
Bit
PIO default mode
IORDY
Mode
mode
Enable 8 bit data transfers.
Set transfer mode based on value in Sector Count register.
Disable Read Look Ahead.
NOP Accepted for backward compatibility.
Disable 8 bit data transfer.
NOP accepted for backward compatibility.
Accepted for backward compatibility. Use of this feature is not recommended.
Set the host current source capability. Allows trade-off between current drawn and
read/write speed.
Set Features
Features supported
Transfer mode values
7
X
6
Bits (7:3)
00000b
00000b
00001b
5
Drive
4
Operation
Feature
Config
EFh
X
X
X
3
2
Bits (2:0)
Mode
000b
001b
X
(1)
1
SMCxxxAF
0