SMC256BFY6E NUMONYX [Numonyx B.V], SMC256BFY6E Datasheet - Page 24
SMC256BFY6E
Manufacturer Part Number
SMC256BFY6E
Description
Manufacturer
NUMONYX [Numonyx B.V]
Datasheet
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Command Interface
5
5.1
Figure 2.
1. D
Table 16.
24/91
tc(R)
ta(A)
ta(CE)
Symbol
the -WE signal must be de-asserted between consecutive cycle operations.
OUT
D0 to D15 (D
signifies data provided by the CompactFlash Memory Card to the system. The -CE signal or both the -OE signal and
–REG
Address Inputs
–CE2/–CE1
–OE
Command Interface
There are two types of bus cycles and timing sequences that occur in the PCMCIA type
interface, direct mapped I/O transfer and memory access. Two types of bus cycles are also
available in True IDE interface type: PIO transfer and Multi-Word DMA transfer.
Table
write timing parameters.
Figure 8
In order to set the card mode, the -OE (-ATASEL) signal must be set and kept stable before
applying V
mode, -OE(-ATASEL) must be driven High, while it must be driven Low to place the card in
True IDE mode.
Attribute Memory Read and Write
Attribute Memory Read waveforms
Attribute Memory Read timing
t
t
t
AVAV
AVQV
ELQV
OUT
IEEE Symbol
16,
)
show the read and write timing diagrams.
Table
CC
until the reset phase is completed. To place the card in Memory mode or I/O
17,
ten(OE)
tsu(A)
Speed Version
Table
ten(CE)
Read Cycle Time
Address Access Time
CE Access Time
ta(A)
ta(CE)
Figure
18,
ta(OE)
Table
2,
Figure
19,
Parameter
Table
VALID
tc(R)
3,
Figure
20,
Table 21
4,
VALID
Figure
and
5,
tv(A)
Table 22
Figure
Min
300
6,
show the read and
Figure
300ns
tdis(CE)
tdis(OE)
Max
300
300
SMCxxxBF
and
AI10080
Unit
ns
ns
ns
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