smc256af Numonyx, smc256af Datasheet - Page 52

• 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
9.1
52/82
Table 46.
1. FR = Features Register, SC = Sector Count Register, SN = Sector Number Register, CY = Cylinder
Check Power mode command (98h or E5h)
This command checks the power mode.
Issuing the command while the card is in Standby mode, is about to enter Standby, or is
exiting Standby, the command will set BSY, set the Sector Count register to 00h, clear BSY
and generate an interrupt.
Issuing the command when the card is in Idle mode will set BSY, set the Sector Count
register to FFh, clear BSY and generate an interrupt.
Table 47
Table 47.
Class
1
1
1
2
3
3
2
2
3
Registers, DH = Card/Drive/Head Register, LBA = Logical Block Address Mode Supported (see command
descriptions for use),
Y - The register contains a valid parameter for this command. For the drive/head register Y means both the
Compact Flash memory card and head parameters are used.
D - only the Compact Flash memory card parameter is valid and not the head parameter
C - the register contains command specific data (see command descriptors for use).
Command (7)
Sect Num (3)
Sect Cnt (2)
Cyl High (5)
Cyl Low (4)
Feature (1)
C/D/H (6)
Bit
defines the byte sequence of the Check Power mode command.
Write Sector(s) w/o Erase
Write Multiple w/o Erase
CF-ATA command set
Check Power mode
Standby immediate
Translate Sector
Write Sector(s)
Write Multiple
Write Buffer
Write Verify
Wear Level
Command
7
X
6
(1)
(continued)
E0h or 94h
30h or 31h
5
Code
CDh
E8h
C5h
3Ch
87h
F5h
38h
Drive
4
98h or E5h
FR
X
X
X
X
X
3
SC
Y
Y
Y
Y
Y
Y
SN
Y
Y
Y
Y
Y
Y
2
CY
Y
Y
Y
Y
Y
Y
X
1
DH
D
Y
Y
D
Y
Y
Y
Y
Y
SMCxxxAF
LBA
0
Y
Y
Y
Y
Y
Y