ACE25C160G Datasheet, PDF (28/36 Pages) ACE Technology Co., LTD. – Uniform SECTOR Dual and Quad Serial Flash

ACE25C160G
Uniform SECTOR Dual and Quad Serial Flash
Figure26. Program Security Registers command Sequence Diagram
Read Security Registers (48H)
The Read Security Registers command is similar to Fast Read command. The command is followed
by a 3-byte address (A23-A0) and a dummy byte, each bit being latched-in during the rising edge of
SCLK. Then the memory content, at that address, is shifted out on SO, each bit being shifted out, at a
Max frequency fC, during the falling edge of SCLK. The first byte addressed can be at any location.
The address is automatically incremented to the next higher address after each byte of data is shifted
out. Once the A9-A0 address reaches the last byte of the register (Byte 3FFH), it will reset to 000H,
the command is completed by driving CS# high.
Address
A23-A16
A15-A8
A7-A0
Security Registers 1
00H
01H
Byte Address
Security Registers 2
00H
02H
Byte Address
Security Registers 3
00H
03H
Byte Address
Figure27. Read Security Registers command Sequence Diagram
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