23A1024/23LC1024

DS25142A-page 16

Preliminary

 2011 Microchip Technology Inc.

FIGURE 4-4:

ENTER SQI MODE (EQIO) FROM SPI MODE

4.3

Exit SDI or SQI Mode

To exit from SDI mode, the RSTIO command must be

issued. The command must be entered in the current

device configuration, either SDI or SQI, see Figure 4-7

and Figure 4-8.

FIGURE 4-5:

BYTE READ MODE SQII

SCK

0

2

34

56

7

1

SI

High Impedance

SO

CS

00

01

11

0

0

Note:

Page and Sequential mode is similar in that additional bytes can be clocked out before CS is brought high.

Note:

The first byte read after the address will be a dummy byte.

CS

SCK

0

2345

67

1

8

9

1

0

40

20

16

12

8

SIO0

1

0

51

21

17

13

9

0

0

62

22

18

14

10

0

0

73

23

19

15

11

SIO1

SIO2

SIO3

Instruction

24-Bit Address

Dummy Byte

10

11

4

0

5

1

6

2

7

3

Data Out