P25Q64U datasheet(46/97 Pages) PUYA

Part #	P25Q64U

Description	Ultra Low Power, 64M-bit Serial Multi I/O Flash Memory Datasheet

PDF	97 Pages

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Manufacturer	PUYA [Puya Semiconductor Co., Ltd.]

Direct Link	http://www.puyasemi.com/index_en.html

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46 / 97 page

P25Q64U Datasheet

Puya Semiconductor

Page 46 of 97

10.19 Burst Read

The Set Burst with Wrap command is used in conjunction with “4 X IO Read” command to access a fixed length

of 8/16/32/64-byte section within a 256-byte page, in standard SPI mode.

The Set Burst with Wrap command sequence: CS# goes low

→ Send Set Burst with Wrap command → Send

24 dummy bits

→ Send 8 bits “Wrap bits” → CS# goes high.

W6,W5

W4=0

W4=1 (default)

Wrap Aroud

Wrap Length

Wrap Aroud

Wrap Length

0,0

Yes

8-byte

N/A

0,1

Yes

16-byte

N/A

1,0

Yes

32-byte

N/A

1,1

Yes

64-byte

N/A

If the W6-

W4 bits are set by the Set Burst with Wrap command, all the following “4 X IO Read” command will

use the W6-W4 setting to access the 8/16/32/64-

byte section within any page. To exit the “Wrap Around”

function and return to normal read operation, another Set Burst with Wrap command should be issued to set

W4=1.

Figure 10-19 Burst Read (SBL) Sequence (Command 77)

Command

77H

CS#

SCLK

SI(IO0)

SO(IO1)

10 11 12 13 14 15

W6-W4

WP#(IO2)

HOLD#(IO3)

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