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參數(shù)資料
| 型號： | A49FL004TX-33F |
| 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)： | 13/36頁 |
| 文件大?。?/td> | 713K |
| 代理商： | A49FL004TX-33F |
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Multiple Device Selection
Multiple A49FL004 devices may be strapped to
increase memory densities in a system. The four ID
pins, ID[3:0], allow up to 16 devices to be attached to
the same bus by using different ID strapping in a
system, BIOS support, bus loading, or the attaching
bridge may limit this number. The boot device must
have an ID of “0000b” (determined by ID[3:0]);
subsequent devices use incremental numbering,
equal density must be used with multiple devices.
Multiple Device Selection for
Firmware Hub Memory Cycle
For Firmware Memory Read/Write cycles, hardware
strapping values on ID[3:0] must match the values in
IDSEL field. See Table x for multiple device selection
configurations. The A49FL004 will compare the
IDSEL field with ID[3:0] ‘s strapping values. If there is
a mismatch, the device will ignore the reminder of the
cycle.
Table
6:
FWH
Multiple
Configuration
Device #
ID[3:0]
0 (Boot Device)
0000
1
0001
2
0010
3
0011
4
0100
5
0101
6
0110
7
0111
8
1000
9
1001
10
1010
11
1011
12
1100
13
1101
14
1110
15
1111
A49FL004
PRELIMINARY (September, 2005, Version 0.0)
12
AMIC Technology, Corp.
Device
Selection
IDSEL
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
Multiple Device Selection for
LPC Memory Cycle
For LPC Memory Read/Write cycles, ID information is
included in the address bits of every cycle. The ID
bits in the address field are the reverse of the
hardware strapping. See Table x2 for multiple device
selection configurations. The A49FL004 will compare
these bits with ID[3:0]’s strapping values. If there is a
mismatch, the device will ignore the remainder of the
cycle.
Table
7:
LPC
Multiple
Configuration
Device #
ID[3:0]
0 (Boot Device)
0000
1
0001
2
0010
3
0011
4
0100
5
0101
6
0110
7
0111
8
1000
9
1001
10
1010
11
1011
12
1100
13
1101
14
1110
15
1111
Device
Selection
Address Range
1111
1110
1101
1100
1011
1010
1001
1000
0111
0110
0101
0100
0011
0010
0001
0000
相關PDF資料 |
PDF描述 |
|---|---|
| A49FL004 | 4 Mbit CMOS 3.3Volt-only Firmware Hub/LPC Flash Memory |
| A49FL004TL-33 | 4 Mbit CMOS 3.3Volt-only Firmware Hub/LPC Flash Memory |
| 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 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| A49LF004TX-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 |
| A49LF040 | 制造商:AMICC 制造商全稱:AMIC Technology 功能描述:4 Mbit CMOS 3.3Volt-only Low Pin Count Flash Memory |
| A49LF040A | 制造商:AMICC 制造商全稱:AMIC Technology 功能描述:4 Mbit CMOS 3.3Volt-only Low Pin Count Flash Memory |
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