Register

Address

Register

Name

Register Usage

Type

Reset Default Value

7654

3

2

1

0

0xA

R10

Unused

R/W

----

-

-

-

-

0xB

R11

Unused

R/W

----

-

-

-

-

0xC

R12

Unused

R/W

----

-

-

-

-

0xD

R13

Unused

R/W

----

-

-

-

-

0xE

R14

Unused

R/W

----

-

-

-

-

0xF

R15

Reserved

R/W

----

-

-

-

-

R0 - Core Voltage Register

Address 0x0

Type R/W

Reset Default 8h’7F

Bit

Field Name

Description or Comment

7

Sign

This bit is fixed to ‘0’. Reading this bit will result in a ‘0’. Any data written into

this bit position using the Register Write command is ignored.

6:0

Voltage

Core voltage value. Default value is in bold.

Voltage Data Code [7:0]

Voltage Value (V)

7h’00

0.6

7h’xx

Linear scaling

7h’7f

1.2 (default)

R1 - Unused Register

Address 0x1

Type R/W

Reset Default 8h’00

Bit

Field Name

Description or Comment

7:0

Unused

Write transactions to this register are ignored. Read transactions will

return a “No Response Frame.” A no response frame contains all

zeros (see PWI 1.0 specification).

R2 – VO3 Voltage Register (Memory Retention Voltage)

Address 0x2

Type R/W

Reset Default 8h’60

Bit

Field Name

Description or Comment

7

Sign

This bit is fixed to ‘0’. Reading this bit will result in a ‘0’. Any data written into

this bit position using the Register Write command is ignored.

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