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參數(shù)資料
| 型號： | A49FL004TL-33 |
| 廠商： | AMIC Technology Corporation |
| 英文描述： | 4 Mbit CMOS 3.3Volt-only Firmware Hub/LPC Flash Memory |
| 中文描述： | 4兆位的CMOS 3.3Volt只固件集線器/ LPC快閃記憶體 |
| 文件頁數(shù)： | 12/36頁 |
| 文件大?。?/td> | 713K |
| 代理商： | A49FL004TL-33 |
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A49FL004
PRELIMINARY (September, 2005, Version 0.0)
11
AMIC Technology, Corp.
Table 5: LPC Memory Write Cycle Definition
Figure 7: LPC Write Waveforms
LCLK
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
START
ADDRESS
TAR0
TAR1
SYNC
DATA
TAR0
TAR1
LFRAME
LAD[3:0]
CYCTYPE
+ DIR
Clock
Cycle
Field
LAD[3:0]
Direction
Descriptions
1
START
0000
IN
Start of Cycle: “0000b” to indicate the start of a LPC memory
cycle. LFRAME must be active low (low) for the part to respond.
Only the last field latched before LFRAME transitions high will be
recognized.
2
CYCTYPE
+ DIR
011x
IN
Cycle Type: Indicates the type of a LPC memory write cycle.
CYCTYPE: Bits 3-2 must be “01b” for memory cycle.
DIR: Bit 1 = “1b” indicates the type of cycle for Write. Bit 0 is
reserved.
Address Cycles: This is the 32-bit memory address. The
addressed transfer most-significant nibble first and least-significant
nibble last. (i.e., a31-28 on LAD[3:0] first, and A3-A0 on LAD[3:0]
last).
3-10
ADDR
YYYY
IN
11-12
DATA
YYYY
IN
Data Cycles: The 8-bits data transferred with least-significant
nibble first and most-significant nibble last. (i.e., I/O
3
– I/O
0
on
LAD[3:0] first, then I/O
7
– I/O
4
on LAD[3:0] last).
13
TAR0
1111
IN
then Float
Float
then OUT
Turn-Around cycle 0: The host has driven the bus to all”1”s and
then float the bus.
14
TAR1
1111
(Float)
Turn-Around cycle 1: The A49FL004 takes control of the bus
during this cycle.
15
SYNC
0000
OUT
Sync: The device indicates the least-significant nibble of data byte
will be ready in next clock cycle.
16
TAR0
1111
OUT
then Float
Turn-Around cycle 0: The A49FL004 has driven the bus to all “1”s
and then float the bus.
17
TAR1
1111
(Float)
Float
then IN
Turn-Around cycle 1: The host resumes control of the bus during
this cycle.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| A49FL004TL-33F | 4 Mbit CMOS 3.3Volt-only Firmware Hub/LPC Flash Memory |
| A49FL004TX-33 | 4 Mbit CMOS 3.3Volt-only Firmware Hub/LPC Flash Memory |
| A49LF004TX-33C | 4 Mbit CMOS 3.3Volt-only Firmware Hub Flash Memory |
| A49LF004TL-33C | 4 Mbit CMOS 3.3Volt-only Firmware Hub Flash Memory |
| A49LF004 | 4 Mbit CMOS 3.3Volt-only Firmware Hub Flash Memory |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| A49FL004TL-33F | 制造商:AMICC 制造商全稱:AMIC Technology 功能描述:4 Mbit CMOS 3.3Volt-only Firmware Hub/LPC Flash Memory |
| A49FL004TX-33 | 制造商:AMICC 制造商全稱:AMIC Technology 功能描述:4 Mbit CMOS 3.3Volt-only Firmware Hub/LPC Flash Memory |
| A49FL004TX-33F | 制造商:AMICC 制造商全稱:AMIC Technology 功能描述:4 Mbit CMOS 3.3Volt-only Firmware Hub/LPC Flash Memory |
| A49LF004 | 制造商:AMICC 制造商全稱:AMIC Technology 功能描述:4 Mbit CMOS 3.3Volt-only Firmware Hub Flash Memory |
| A49LF004TL-33C | 制造商:AMICC 制造商全稱:AMIC Technology 功能描述:4 Mbit CMOS 3.3Volt-only Firmware Hub Flash Memory |
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