參數(shù)資料
型號(hào)： SST55LD017D-40-I-TQW
廠商： SILICON STORAGE TECHNOLOGY INC
元件分類： 存儲(chǔ)控制器/管理單元
英文描述： FLASH MEMORY DRIVE CONTROLLER, PQFP100
封裝： TQFP-100
文件頁(yè)數(shù)： 26/59頁(yè)
文件大?。?/td> 702K
代理商： SST55LD017D-40-I-TQW
32
EOL Product Document
ATA Flash Disk Controller
SST55LD017D
2006 Silicon Storage Technology, Inc.
S71225-01-EOL
4/06
11.2.1.15 Set-Features - EFH
This command is used by the host to establish or select certain features. Table 11-5 defines all features
that are supported.
Features 01H and 81H are used to enable and clear 8-bit data transfer mode. If the 01H feature
command is issued all data transfers will occur on the low order D7-D0 data bus and the IOCS16#
signal will not be asserted for data register accesses.
Features 55H and BBH are the default features for the ATA Flash Disk Controller; thus, the host does
not have to issue this command with these features unless it is necessary for compatibility reasons.
Features 66H and CCH can be used to enable and disable whether the Power On Reset (POR)
Defaults will be set when a software Reset occurs.
Bit ->
76543210
Command (7)
EFH
C/D/H (6)
XDrive
X
Cyl High (5)
X
Cyl Low (4)
X
Sec Num (3)
X
Sec Cnt (2)
X
Feature (1)
Feature
TABLE 11-5: FEATURES SUPPORTED
Feature
Operation
01H
Enable 8-bit data transfers.
03H
Set transfer mode based on value in Sector Count register. Table 11-6 defines the values.
55H
Disable Read Look Ahead.
66H
Disable Power on Reset (POR) establishment of defaults at software Reset.
69H
NOP - Accepted for backward compatibility.
81H
Disable 8-bit data transfer.
96H
NOP - Accepted for backward compatibility.
97H
Accepted for backward compatibility. Use of this Feature is not recommended.
9AH
NOP - accepted for compatibility.
BBH
4 Bytes of data apply on Read/Write-Long-Sector commands.
CCH
Enable Power on Reset (POR) establishment of defaults at software Reset.
T11-5.0 1225
TABLE 11-6: TRANSFER MODE VALUES
Mode
Bits [7:3]
Bits [2:0]
PIO default mode
00000b
000b
PIO default mode, disable IORDY
00000b
001b
PIO flow control transfer mode
00001b
mode1
1. Mode = transfer mode number, all other values are not valid
Reserved
Other
N/A
T11-6.0 1225
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