VD5377 datasheet(67/88 Pages) STMICROELECTRONICS

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Doc ID 022952 Rev 2

67/88

VD5377

I2C register map

Table 38 contains a subset of device registers which may be required by the end user.

Note:

The “default” column refers to the power-on register values in software standby before user

initialization. The register type definitions are summarized in Table 37.

Table 37. Register types

Type

Description

Hardware Read only register

PRW

Hardware Read/Write register

PRWC

Hardware Read/Write register with auto set/clear

Firmware Read register

Firmware Read/Write register

Table 38. I2C register map

Addr

(Hex)

SIgnal name

Bit

Type

Default

(Hex)

Comment

MAJOR_REVISION

major_revision

7:0

Major hardware revision

number. Updated in case of full

mask regeneration.

0 = rev 1.x

1 = rev 2.x

2 = rev 3.x

x = minor revision

MINOR_REVISION

minor_revision

7:0

Minor hardware revision

number. Updated in case of

metal fix and or ROM changes.

0 = rev 0

1 = rev 1

2 = rev 2

ANALOG_CTRL1

Reserved

PRW

Reserved

osc_48MHz_sel

2:1

PRW

Oscillator 48 MHz center

frequency select.

0 = Center freq = 34 MHz

1 = Center freq = 39 MHz

2 = Center freq = 44 MHz

3 = Center freq = 48 MHz

Reserved

PRW

Reserved

PRW

Reserved

7:5

PRW

Reserved

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