SN8F5708 datasheet(166/204 Pages) SONIX

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SN8F5708 Series

In-System Program

Datasheet Rev. 2.4

166

23.2

In-system Program Register

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

PERAM

PERAM7

PERAM6

PERAM5

PERAM4

PERAM3

PERAM2

PERAM1

PERAM0

PEROMH

PEROM15 PEROM14 PEROM13 PEROM12 PEROM11 PEROM10

PEROM9

PEROM8

PEROML

PEROM7

PEROM6

PEROM5

PECMD11

PECMD10

PECMD9

PECMD8

PECMD

PECMD7

PECMD6

PECMD5

PECMD4

PECMD3

PECMD2

PECMD1

PECMD0

PERAM Register (0x97)

Bit

Field

Type

Initial

Description

7..0

PERAM[7:0]

R/W

0x00

The first address of data buffer (IRAM)

PEROMH Register (0x96)

Bit

Field

Type

Initial

Description

7..0

PEROM[15:8]

R/W

0x00

The first address (15

th– 8th bit) of program page (IROM)

PEROML Register (0x95)

Bit

Field

Type

Initial

Description

7..5

PEROM[7:5]

R/W

000

The first address (7

th – 5th) of program page (IROM)

Reserved

3..0

PECMD[11:8]

0xA: Enable in-system program

Else values: Disable in-system program

* Disabling in-system program can avoid mistakenly trigger ISP function.

PECMD Register (0x94)

Bit

Field

Type

Initial

Description

7..0

PECMD[7:0]

0x5A: Start page program procedure

*(1)

Else values: Reserved

*(2)

*(1) Before writing ‘0x5A’ into PECMD[7:0], PECMD[11:8] must be written ‘0xA’.

*(2) Not permitted to write any other to PECMD register.

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