參數(shù)資料
型號(hào): iMC020FLSA
廠商: Intel Corp.
英文描述: 5 Volt Series 2 Flash Memory Card(5V系列2閃速存儲(chǔ)器卡)
中文描述: 5伏2系列閃存卡(5V的系列2閃速存儲(chǔ)器卡)
文件頁數(shù): 19/51頁
文件大?。?/td> 827K
代理商: IMC020FLSA
E
iMC002/004/010/020FLSA
19
PRELIMINARY
READY-BUSY STATUS REGISTER
(Read/Write Register)
1 = DEVICE READY, 0 = DEVICE BUSY
ADDRESS
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
RESERVED
4134H
DEVICE
17
DEVICE
16
DEVICE
19
DEVICE
11
DEVICE
18
DEVICE
10
4132H
DEVICE
15
DEVICE
14
DEVICE
13
DEVICE
12
DEVICE 9
DEVICE 8
4130H
DEVICE 7
DEVICE 6
DEVICE 5
DEVICE 4
DEVICE 3
DEVICE 2
DEVICE 1
DEVICE 0
FIG10
Figure 10. Ready-Busy Status Register (Intel)
Provides Operation Status of All Flash Memory Devices
READY-BUSY MASK
(Read/Write Register)
1 = MASK ENABLED
ADDRESS
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
RESERVED
4124H
DEVICE
17
DEVICE
16
DEVICE
19
DEVICE
11
DEVICE
18
DEVICE
10
4122H
DEVICE
15
DEVICE
14
DEVICE
13
DEVICE
12
DEVICE 9
DEVICE 8
4120H
DEVICE 7
DEVICE 6
DEVICE 5
DEVICE 4
DEVICE 3
DEVICE 2
DEVICE 1
DEVICE 0
FIG11
Figure 11. Ready-Busy Mask Register (Intel)
Essential for Write Optimization
13.7
Ready-Busy Mask Register
(Intel)
The bits of the read/write ready-busy mask register
(Attribute Memory Plane Address 4120H
–4124H,
Figure 11) mask out the corresponding “AND-ed”
ready-busy status register bits from the PCMCIA
data bus (RDY/BSY#, pin 16) and the card status
register RDY/BSY# bit (bit 0).
In an unmasked condition (mask register bits = 0),
any device RY/BY# output going low pulls the
card’s RDY/BSY# output to V
IL
(BUSY). In this
case, all devices must be READY to allow the
card’s RDY/BSY# output to be ready (V
IH
).
this is
referred to as the PCMCIA ready-busy mode. an
alternate type of ready-busy function is
described in the next section, ready-busy mode
register
.
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