參數(shù)資料
型號： SST48CF048-C1
元件分類： PROM
英文描述： 24M X 16 FLASH 3.3V PROM CARD, 100 ns, XMA50
封裝： CARD-50
文件頁數(shù)： 22/62頁
文件大小： 1077K
代理商： SST48CF048-C1
Data Sheet
CompactFlash Card
SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256
29
2002 Silicon Storage Technology, Inc.
S71125-03-000
2/02
375
2.7 True IDE Mode I/O Transfer Function
2.7.1 True IDE Mode I/O Function
The CompactFlash card can be configured in a True IDE mode of operation. The CompactFlash card is configured
in this mode only when the -OE input signal is grounded by the host during the power off to power on cycle. In this
True IDE mode the PCMCIA protocol and configuration are disabled and only I/O operations to the Task File and
Data register are allowed. In this mode no Memory or Attribute registers are accessible to the host. CompactFlash
cards permit 8 bit data accesses if the user issues a Set Feature Command to put the device in 8-bit mode.
Note: Removing and reinserting the CompactFlash card while the host computer’s power is on will reconfigure the
CompactFlash to PC Card ATA mode from the original True IDE mode. To configure the CompactFlash card
in True IDE mode, the 50-pin socket must be power cycled with the CompactFlash card inserted and -OE
(output enable) asserted.
Table 2-18 defines the function of the operations for the True IDE mode.
TABLE
2-18: TRUE IDE MODE I/O FUNCTION
Function Code
-CE2
-CE1
A0-A2
-IORD
-IOWR
D15-D8
D7-D0
Invalid mode
VIL
X
High Z
Standby mode
VIH
X
High Z
Task File Write
VIH
VIL
1-7H
VIH
VIL
Don’t Care
Data In
Task File Read
VIH
VIL
1-7H
VIL
VIH
High Z
Data Out
Data Register Write
VIH
VIL
0
VIH
VIL
Odd Byte In
Even Byte In
Data Register Read
VIH
VIL
0
VIL
VIH
Odd Byte Out
Even Byte Out
Control Register Write
VIL
VIH
6H
VIH
VIL
Don’t Care
Control In
Alt Status Read
VIL
VIH
6H
VIL
VIH
High Z
Status Out
Drive Address
VIL
VIH
7H
VIL
VIH
High Z
Data Out
T2-18.0 375
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