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| 型号： | HB28H016RM2 |
| 英文描述： | IC Memory CompactFlash /PC-ATA Standard Users Manual/Device |
| 中文描述： | 集成电路记忆的CompactFlash / PC的ATA标准用户手册/设备 |
| 文件页数： | 34/103页 |
| 文件大小： | 466K |
| 代理商： | HB28H016RM2 |
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28
Table 3.8
Pin Functions in Memory Mode
Pin No.
Abbre-
viation
Compact
Flash
PC-ATA
Card
Input/
Output Function
V
CC
GND
13, 38
17, 51
Input
Power supply pins
1, 50
1, 34, 35,
68
Input
GND pins
D0–D15
21, 22, 23,
2, 3, 4, 5,
6, 47, 48,
49, 27, 28,
29, 30, 31
30, 31, 32,
2, 3, 4, 5,
6, 64, 65,
66, 37, 38,
39, 40, 41
Input/
Output
Data bus. D0–D7 comprise the even byte of a word,
and D8–D15 the odd byte. D0 and D8 are the
respective LSBs.
A0–A10
20, 19, 18,
17, 16, 15,
14, 12, 11,
10, 8
29, 28, 27,
26, 25, 24,
23, 22, 12,
11, 8
Input
Address bus. A10 is the MSB, and A0 the LSB.
CE1
,
CE2
7, 32
7, 42
Input
CE1
is used for even address control and
CE2
for
odd address control. Both are active-low.
OE
9
9
Input
This pin is used to read the contents of both attribute
and common areas. Active-low.
WE
36
15
Input
This pin is used to write the contents of both attribute
and common areas. Active-low.
IORD
34
44
Input
Not used in memory mode. It is recommended that
this pin be pulled high.
IOWR
35
45
Input
Not used in memory mode. It is recommended that
this pin be pulled high.
RDY/
BUSY
37
16
Output Goes low during internal initialization operations
performed automatically at power-on and in a reset.
Proceed to the next operation when this pin goes
high.
CD1
,
CD2
26, 25
36, 67
Output Used by the host to determine whether a card is
inserted. These pins are connected to GND inside
the card.
WP
24
33
Output Originally intended to indicate whether the write-
protect state is in effect, but as this card has no
write-protect function, the output of this pin is always
low.
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