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| 型号： | PC28F640J3C-120 |
| 厂商： | Intel Corp. |
| 英文描述： | Intel StrataFlash Memory (J3) |
| 中文描述： | 英特尔StrataFlash存储器（J3） |
| 文件页数： | 52/72页 |
| 文件大小： | 905K |
| 代理商： | PC28F640J3C-120 |
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256-Mbit J3 (x8/x16)
52
Datasheet
Appendix A Common Flash Interface
The Common Flash Interface (CFI) specification outlines device and host system software
interrogation handshake which allows specific vendor-specified software algorithms to be used for
entire families of devices. This allows device independent, JEDEC ID-independent, and forward-
and backward-compatible software support for the specified flash device families. It allows flash
vendors to standardize their existing interfaces for long-term compatibility.
This appendix defines the data structure or “database” returned by the Common Flash Interface
(CFI) Query command. System software should parse this structure to gain critical information
such as block size, density, x8/x16, and electrical specifications. Once this information has been
obtained, the software will know which command sets to use to enable flash writes, block erases,
and otherwise control the flash component. The Query command is part of an overall specification
for multiple command set and control interface descriptions called Common Flash Interface, or
CFI.
A.1
Query Structure Output
The Query “database” allows system software to gain information for controlling the flash
component. This section describes the device’s CFI-compliant interface that allows the host system
to access Query data.
Query data are always presented on the lowest-order data outputs (D[7:0]) only. The numerical
offset value is the address relative to the maximum bus width supported by the device. On this
family of devices, the Query table device starting address is a 10h, which is a word address for x16
devices.
For a word-wide (x16) device, the first two bytes of the Query structure, “Q” and “R” in ASCII,
appear on the low byte at word addresses 10h and 11h. This CFI-compliant device outputs 00H
data on upper bytes. Thus, the device outputs ASCII “Q” in the low byte (D[7:0]) and 0x00 (00h)
in the high byte (D[15:8]).
At Query addresses containing two or more bytes of information, the least significant data byte is
presented at the lower address, and the most significant data byte is presented at the higher address.
In all of the following tables, addresses and data are represented in hexadecimal notation, so the
“h” suffix has been dropped. In addition, since the upper byte of word-wide devices is always
“00h,” the leading “00” has been dropped from the table notation and only the lower byte value is
shown. Any x16 device outputs can be assumed to have 00h on the upper byte in this mode.
相关PDF资料 |
PDF描述 |
|---|---|
| PC28F256J3C-115 | Intel StrataFlash Memory (J3) |
| PC28F128J3C-115 | Intel StrataFlash Memory (J3) |
| PC28F640J3C-115 | Intel StrataFlash Memory (J3) |
| PC28F320J3C-115 | Intel StrataFlash Memory (J3) |
| PC28F128J3C-120 | Intel StrataFlash Memory (J3) |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PC28F640J3C-125 | 制造商:INTEL 制造商全称:Intel Corporation 功能描述:Intel StrataFlash Memory (J3) |
| PC28F640J3C-150 | 制造商:INTEL 制造商全称:Intel Corporation 功能描述:Intel StrataFlash Memory (J3) |
| PC28F640J3D75 | 制造商:Intel 功能描述: |
| PC28F640J3D-75 | 制造商:Intel 功能描述:NOR Flash, 4M x 16, 64 Pin, Plastic, BGA |
| PC28F640J3D75A | 功能描述:IC FLASH 64MBIT 75NS 64EZBGA RoHS:是 类别:集成电路 (IC) >> 存储器 系列:StrataFlash™ 产品变化通告:Product Discontinuation 26/Apr/2010 标准包装:136 系列:- 格式 - 存储器:RAM 存储器类型:SRAM - 同步，DDR II 存储容量:18M（1M x 18） 速度:200MHz 接口:并联 电源电压:1.7 V ~ 1.9 V 工作温度:0°C ~ 70°C 封装/外壳:165-TBGA 供应商设备封装:165-CABGA（13x15） 包装:托盘 其它名称:71P71804S200BQ |
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