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參數(shù)資料
| 型號： | M50LPW041 |
| 廠商： | 意法半導體 |
| 英文描述： | 4 Mbit 512Kb x8, Uniform Block 3V Supply Low Pin Count Flash Memory |
| 中文描述： | 4兆位512KB的× 8，統(tǒng)一座3V電源低引腳數(shù)快閃記憶體 |
| 文件頁數(shù)： | 10/37頁 |
| 文件大?。?/td> | 268K |
| 代理商： | M50LPW041 |
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M50LPW041
10/37
Table 8. LPC Bus Write Field Definitions
Clock
Cycle
Number
Clock
Cycle
Count
Field
LAD0-
LAD3
Memory
I/O
Description
1
1
START
0000b
I
On the rising edge of CLK with LFRAME Low, the contents
of LAD0-LAD3 must be 0000b to indicate the start of a LPC
cycle.
2
1
CYCTY
PE +
DIR
011Xb
I
Indicates the type of cycle. Bits 3:2 must be 01b. Bit 1
indicates the direction of transfer: 1b for write. Bit 0 is don’t
care (X).
3-10
8
ADDR
XXXX
I
A 32-bit address phase is transferred starting with the most
significant nibble first. See Tables 3, 2 and 6 for the field
description.
11-12
2
DATA
XXXX
I
Data transfer is two cycles, starting with the least significant
nibble.
13
1
TAR
1111b
I
The host drives LAD0-LAD3 to 1111b to indicate a
turnaround cycle.
14
1
TAR
1111b
(float)
O
The LPC Flash Memory takes control of LAD0-LAD3 during
this cycle.
15
1
SYNC
0000b
O
The LPC Flash Memory drives LAD0-LAD3 to 0000b,
indicating it has received data or a command.
16
1
TAR
1111b
O
The LPC Flash Memory drives LAD0-LAD3 to 1111b,
indicating a turnaround cycle.
17
1
TAR
1111b
(float)
N/A
The LPC Flash Memory floats its outputs and the host takes
control of LAD0-LAD3.
Figure 6. LPC Bus Write Waveforms
AI04430
CLK
LFRAME
LAD0-LAD3
Number of
clock cycles
START
CYCTYPE
+ DIR
ADDR
DATA
TAR
SYNC
TAR
1
1
8
2
2
1
2
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相關(guān)代理商/技術(shù)參數(shù) |
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| M50LPW041K | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:4 Mbit 512Kb x8, Uniform Block 3V Supply Low Pin Count Flash Memory |
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| M50LPW041N | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:4 Mbit 512Kb x8, Uniform Block 3V Supply Low Pin Count Flash Memory |
| M50LPW041N1T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:4 Mbit 512Kb x8, Uniform Block 3V Supply Low Pin Count Flash Memory |
| M50LPW080 | 制造商:STMicroelectronics 功能描述: |
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