參數(shù)資料
型號(hào): SMC032BFY6E
廠商: NUMONYX
元件分類: PROM
英文描述: 4M X 8 FLASH 3.3V PROM CARD, 300 ns, UUC50
封裝: LEAD FREE, CARD-50
文件頁(yè)數(shù): 27/90頁(yè)
文件大小: 1863K
代理商: SMC032BFY6E
SMCxxxBF
Card configuration
6.1
Configuration option register (200h in attribute memory)
The configuration option register is used to configure the card’s interface, address decoding
and interrupt to the card (see Table 26).
6.1.1
SRESET
Setting the SRESET bit to ‘1’ and returning the bit ‘0’ places the CompactFlash storage card
in the reset state. Setting this bit to ‘1’ is equivalent to asserting the Reset signal except that
the SRESET bit is not cleared. Returning the SRESET bit to ‘0’ leaves the CompactFlash
storage card in the same un-configured reset state as after a power-up and hardware reset.
This bit is set to ‘0’ at power-up and taking the card through a hardware reset.
6.1.2
LevlREQ
This bit is set to one (1) when level mode interrupt is selected, and zero (0) when pulse
mode is selected. Set to zero (0) after power-up.
6.1.3
Conf5 - Conf0 (configuration index)
These bits are used to select the operation mode of the card as shown in Table 27. This bit
is set to ‘0’ after power-up.
Table 25.
CompactFlash memory card configuration registers decoding
–CE2 –CE1 –REG –OE –WE
A10
A9
A8-
A4
A3 A2 A1 A0
Selected register
X
0
1
0
1
00
0
Configuration option register read
X
0
1
0
1
00
0
Configuration option register write
X
0
1
0
1
00
0
1
0
Card status register read
X
0
1
0
1
00
0
1
0
Card status register write
X
0
1
0
1
00
0
1
0
Pin replacement register read
X
0
1
0
1
00
0
1
0
Pin replacement register write
X
0
1
0
1
00
0
1
0
Socket and copy register read
X
0
1
0
1
00
0
1
0
Socket and copy register write
Table 26.
Configuration option register (default value: 00h)
Operation
D7
D6
D5
D4D3D2D1
D0
R/W
SRESET
LevlREQ
Conf5
Conf4
Conf3
Conf2
Conf1
Conf0
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