VD5377 datasheet(53/88 Pages) STMICROELECTRONICS

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VD5377

Basic start-up information

8.5

Revision ID

The major and minor revision registers can be used to identify different revisions of the

VD5377 silicon as shown in Table 30. Currently, only two revisions exist: rev 1.0 (0.0) and

rev 2.0 (1.0). Register 0x90 is the device ID and returns 0x4d (77 dec) when read.

8.6

Soft reset

In Table 31 clearing register 0x16 bit 0 (software_reset_n) initiates an internal reset. All

registers are initialized and the MCU performs a reboot. This is equivalent to a power-on

reset.

Table 30. Major/minor revision registers

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

DEVICE_ID

ucDeviceID

7:0

Device ID

0 = VD5376 (and previous)

77 = VD5377

Table 31. Soft reset

Addr

(Hex)

Signal name

Bit

Type

Default

(Hex)

Comment

RESETS

software_reset_n

PRWC

Software reset result in full

system reboot (active low -

auto cleared)

reserved

7:1

PRW

Do not modify these bits.

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