SMC256BFY6 STMICROELECTRONICS [STMicroelectronics], SMC256BFY6 Datasheet - Page 61
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SMC256BFY6
Manufacturer Part Number
SMC256BFY6
Description
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
1.SMC256BFY6.pdf
(91 pages)
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SMCxxxBF
10.4.18
Note:
10.4.19
10.4.20
10.4.21
10.4.22
Word 64: Advanced PIO transfer modes supported
This field is bit significant. Any number of bits may be set to ‘1’ in this field by the
CompactFlash Memory Card to indicate the advanced PIO modes it is capable of
supporting.
Support for PIO modes 5 and above are specific to CompactFlash are reported in Word 163
Word 65: Minimum Multi-Word DMA transfer cycle time
Word 65 of the parameter information of the Identify Device command is defined as the
minimum Multi-Word DMA transfer cycle time.
It corresponds to the minimum cycle time for which the Card ensures data integrity during
transfers. It is expressed in nanoseconds.
The returned value is ‘50h’ (for Cycle time values refer to
Word 66: Recommended Multi-Word DMA transfer cycle time
Word 66 of the parameter information of the Identify Device command is defined as the
recommended Multi-Word DMA transfer cycle time. The returned value is ‘50h’ (for Cycle
time values refer to
Word 67: Minimum PIO transfer cycle time without flow control
This field gives the minimum cycle time (in ns) that the host should use for the
CompactFlash Memory Card to ensure data integrity during transfers when flow control is
not used. The returned value is ‘50h’ (for Cycle time values refer to
Word 68: Minimum PIO transfer cycle time with IORDY
This field gives the minimum cycle time (in ns) supported by the CompactFlash Memory
Card to perform data transfers using IORDY flow control. The returned value is ‘50h’ (for
Cycle time values refer to
Bits 7-2 are reserved for future advanced PIO modes.
Bit 1 is set to ‘1’, indicates that the CompactFlash Memory Card supports PIO mode 4.
Bit 0 is set to ‘1’ to indicate that the CompactFlash Memory Card supports PIO mode 3.
Table
22).
Table
22).
Table
CF-ATA command description
22).
Table
22).
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