AS3665 datasheet(45/78 Pages) AMSCO

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AS3665

Datasheet, Confidential - D e ta i l e d D e s c r i p t i o n I

2C mode Serial Data Bus

Figure 25. Program Write - Slave Receiver Mode

Program Download using Page Select

First the register page_select is set to the program page, which should be accessed. Then the program page (part of or

full page) can be downloaded to the registers Cmd_0_MSB, Cmd_0_LSB, Cmd_1_MSB, Cmd_1_LSB...Cmd_F_MSB,

Cmd_F_LSB (I

2C registers area 60h to 7Fh)15.

Table 55. Page_Select Register

Addr: 5Fh

Page_Select Register

Bit

Bit Name

Default Access

Description

2:0

page_select

000b

R/W

Selects program page for download

000

page 0 - Addr 00h-0Fh

001

page 1 - Addr 10h-1Fh

010

page 2 - Addr 20h-2Fh

011

page 3 - Addr 30h-3Fh

100

page 4 - Addr 40h-4Fh

101

page 5 - Addr 50h-5Fh

110

don’t use

111

don’t use

15.Setting page_select and writing of the program content shall use separate I

2C commands (see Blockwrite/

read boundaries on page 43)

1000XXX

11111110

XXXXXXXX

S - Start

A - Acknowledge (ACK)

P - Stop

XXXXXXXX

<Program(n)-MSB>

Data Transferred

(X + 1 program words + Acknowledge)

Note: Each program word has 2x8 Bits

<FEh>

Program_Direct_Access

<Addr.-start: n>

<Program(n)-LSB> <Program(n+1)-MSB>

<Program(n+X)-LSB>

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