GD25Q32C datasheet(37/50 Pages) ELM

37 / 50 page

Rev.1.0

50 -

http://www.elm-tech.com

GD25Q32CxIGx 3.3V Uniform Sector Dual and Quad Serial Flash

Figure 36. Program Security Registers command Sequence Diagram

Command

0 1 2 3 4 5 6 7

42H

CS#

SCLK

8 9 10

28 29 30 31

3 2 1 0

23 22 21

24-bit address

42 43 44 45

46 47

50 51 52 53

54 55

6 5 4 3 2 1 0

CS#

SCLK

MSB

Data Byte 2

32 33 34 35

7 6 5 4 3 2 1 0

MSB

6 5 4 3 2 1 0

Data Byte 1

Data Byte 3

Data Byte 256

MSB

36 37 38 39

7.32. 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-A12

A11-A10

A9-A0

Security Register #1

00H

0 0 0 1

0 0

Byte Address

Security Register #2

00H

0 0 1 0

0 0

Byte Address

Security Register #3

00H

0 0 1 1

0 0

Byte Address

Figure 37. Read Security Registers command Sequence Diagram

Command

0 1 2 3 4 5 6 7

48H

CS#

SCLK

High-Z

8 9 10

28 29 30 31

3 2 1 0

23 22 21

24-bit address

MSB

34 35 36 37

6 5 4 3 2 1 0

38 39

Data Out1

42 43 44 45

46 47

6 5 4 3 2 1 0

6 5

Data Out2

CS#

SCLK

MSB

Dummy Byte

GD25Q32C Datasheet(PDF) 37 Page - ELM Electronics

GD25Q32C Datasheet(HTML) 37 Page - ELM Electronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

Datasheet Download

Link URL