AS3658F-BCTP datasheet(132/158 Pages) AMSCO

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AS3658

Data Sheet Confidential - Deta il ed Descri ption - System Functi ons

10.4.4 Additional Startup Settings

Table 141. Boot ROM Bits definitions

Addr:4

LDO_RF2_Voltage

These bits defines the startup sequence

Bit

Bit Name

Default

Access

Description

10.4.5 Programmable Startup Sequences with fuse registers—Boot OTP

Its possible to program some startup registers, by using the fuse block:

Table 142. ROMF Bit definitions

Addr:196

FUSE4

These bits control the startup and are set by factory test

Bit

Bit Name

Default

Access

Description

Table 143. ROMF Bit definitions

Addr:197

addrf0

These bits control the startup and are set by factory test

Bit

Bit Name

Default

Access

Description

Table 144. ROMF Bit definitions

Addr:198

addrf0

These bits control the startup and are set by factory test

Bit

Bit Name

Default

Access

Description

double_reset

ROM

R/W

Normal reset pulse

Apply double reset pulse after the normal rest

pulse that is define by res_timer. (pulse on

XRESET with 2msec high time and 2msec

low time

slow_startup

ROM

R/W

Normal startup of LDOs defined in boot rom

with a separation of 1 milliseconds

Startup of all LDOs defined by boot rom with a

time separation of 4 milliseconds

romf_en

Fusible startup rom disabled

Feasible startup of rom enabled

(UniqueID0.UniqueID10) used for startup

7:0

addrf<7:0>

Each bit represents a register address of the bootrom

table (0....31)

Use data of ROM table during startup for the

according address (0....31)

Use data of fuse register during startup for the

according address, starting with data of

7:0

addrf<15:8>

Each bit represents a register address of the bootrom

table (0....31)

Use data of ROM table during startup for the

according address (0....31)

Use data of fuse register during startup for the

according address, starting with data of

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