NX26F640C データシートの表示（PDF） - NexFlash -> Winbond Electronics
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NX26F640C Datasheet PDF : 23 Pages
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NX26F640C
Table 3: Command Set for the NX26F640C Serial Flash Memory (3)
Command Name
Byte 0(5) Byte 1 Byte 2-3
Byte 4-5 or n-bytes
Sector and SRAM Read Commands
Transfer Sector to SRAM-0 (2)
Transfer Sector to SRAM-1 (2)
Read SRAM-0 (1)
Read SRAM-1 (1)
DA7:0
DA7:0
DA7:0
DA7:0
5CH SA15:0
5DH SA15:0
71H BA15:0
73H BA15:0
0000H
0000H
00H
00H
0000H ST15:0 (4)
0000H ST15:0 (4)
Read Data
Read Data
Sector and SRAM Write Commands
Write Enable (1)
DA7:0 06H
Write Disable (1)
DA7:0 04H
Write Sector using SRAM-0 (2)
DA7:0 F6H SA15:0
Write Sector using SRAM-1 (2)
DA7:0 98H SA15:0
Write to SRAM-0 (1)
DA7:0 72H BA15:0
Write to SRAM-1 (1)
DA7:0 74H BA15:0
BA15:0 Write Data+00H
BA15:0 Write Data+00H
Write Data+00H
Write Data+00H
Transfer and Refresh Commands
Transfer SRAM-0 to Sector (2)
Transfer SRAM-1 to Sector (2)
Transfer SRAM-0 to SRAM-1 (2)
Transfer SRAM-1 to SRAM-0 (2)
Refresh Sector using SRAM-0 (2)
Refresh Sector using SRAM-1 (2)
DA7:0
DA7:0
DA7:0
DA7:0
DA7:0
DA7:0
F6H SA15:0
98H SA15:0
92H 0000H
55H 0000H
58H SA15:0
59H SA15:0
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
0000H
Configuration and Status Commands
Read Device Information Sector (2)
DA7:0
Read Configuration Register (1)
DA7:0
Write Configuration Register (1)
DA7:0
Read Status Register (1)
DA7:0
Clear Power Down Bit (1)
DA7:0
Set Power Down Bit (1)
DA7:0
15H 0000H
8CH CF15:0
8AH CF15:0
84H ST15:0
09H
03H
BA15:0 0000H Ready/Busy Read Data
0000H
Notes:
1. Command may be used when device is busy
2. Command may not be used when device is busy
3. Additional commands such as Auto Increment and other commands offering compatibility with earlier generation NexFlash
devices are available. Contact NexFlash for further information.
4. ST15:0 status repeats every 16 Clocks
5. Device address bits DA2:0 specify the device to be selected per the state of the A0, A1 and A2 pins. Bits DA7:3 Must be 0.
NexFlash Technologies, Inc.
13
PRELIMINARY NXSF020D-0902
09/05/02 ©
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