參數(shù)資料
型號: W25Q16CLDAIG
廠商: WINBOND ELECTRONICS CORP
元件分類: PROM
英文描述: 16M X 1 SPI BUS SERIAL EEPROM, PDIP8
封裝: 0.300 INCH, GREEN, PLASTIC, DIP-8
文件頁數(shù): 52/77頁
文件大小: 2458K
代理商: W25Q16CLDAIG
W25Q16CL
- 56 -
11.2.36 Read SFDP Register (5Ah)
The W25Q16CL features a 256-Byte Serial Flash Discoverable Parameter (SFDP) register that contains
information about devices operational capability such as available commands, timing and other features.
The SFDP parameters are stored in one or more Parameter Identification (PID) tables. Currently only one
PID table is specified but more may be added in the future. The Read SFDP Register instruction is
compatible with the SFDP standard initially established in 2010 for PC and other applications. Most
Winbond SpiFlash Memories shipped after June 2010 (date code 1023 and beyond) support the SFDP
feature as specified in the applicable datasheet.
The Read SFDP instruction is initiated by driving the /CS pin low and shifting the instruction code “5Ah”
followed by a 24-bit address (A23-A0)
(1) into the DI pin. Eight “dummy” clocks are also required before the
SFDP register contents are shifted out on the falling edge of the 40
th CLK with most significant bit (MSB)
first as shown in figure 34. For SFDP register values and descriptions, refer to the following SFDP
Definition table.
Note: 1. A23-A8 = 0; A7-A0 are used to define the starting byte address for the 256-Byte SFDP Register.
Instruction (5Ah)
Figure 34. Read SFDP Register Instruction Sequence Diagram
相關(guān)PDF資料
PDF描述
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