ADMC200 データシートの表示（PDF） - Analog Devices

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ADMC200

Motion Coprocessor

Analog Devices 

ADMC200

Name

ID/PHV1/VX

IQ/PHV2

IX/PHV3

IY/VY

ADCV

ADCW

ADCAUX

ADCU

SYSCTRL

SYSSTAT

Table IV. Read Registers

A3 A2 A1 A0

0000

0001

0010

0011

0100

0101

0110

0111

1000

1001

1010

1011

1100

1101

1110

1111

Register Function

Reverse Rotation Result (IDS)/Forward Result Cos +0°

Reverse Rotation Result (IQS)/Forward Cos +120°

Reverse Clarke Cos + 0°/Forward Result Cos +240°

Reverse Clarke Cos +90°/Forward Cos +90°

Reserved

A/D Conversion Result Channel V

A/D Conversion Result Channel W

A/D Conversion Result Auxiliary Channel

A/D Conversion Result Channel U

Reserved

Reserved

Reserved

Reserved

System Control

System Status

Reserved

DESCRIPTION OF THE REGISTERS

All unspecified register locations are reserved.

SYSCTRL System Control Register (See Table V and VI)

SYSSTAT

ADCU

ADCV

ADCW

System Status Register (See Table VII)

These registers contain the results from the first

three analog input channels U, V, and W. The

output data format is twos complement and

therefore Bit 0 is always zero as the A/D

converter has 11-bit resolution.

ADCAUX

This register contains the conversion result

of the auxiliary channel.

PWMTM

PWM Master Switching Period

PWMCHA PWM Channel A on-time

PWMCHB

PWMCHC

PWMDT

PWMPD

ID/IQ

PHV1/2/3

PHIP1/2/3

IX/IY

VX, VY

RHOP

RHO

PWM Channel B on-time

PWM Channel C on-time

PWM Programmable Deadtime Value

PWM Programmable Pulse Deletion Value

These are the results of the reverse rotation

(torque and flux components).

These are the results from the forward

Clarke Transformation.

The inputs for reverse vector transformation

(Clarke and Park).

These registers contain the results of the Clarke

transformation that are the inputs to the reverse

Park rotation.

VX , VY contain the results of the forward

Park rotation.

RHOP is the angle used during the forward vec-

tor transformation. Writing to the RHOP regis-

ter causes the forward rotation to start based on

values in RHOP, VD and VQ registers.

RHO is the angle used during the reverse vector

transformation. Writing to this register starts

the reverse rotation using the values in the

RHO, PHIP1/2/3 registers.

RHO and RHOP are unsigned ratios of 360°.

For example, 45 degrees would be 45/360 × 212.

Table V. System Control (SYSCTRL) Registers

Bit Function

RESET

Default

0 Reserved, Must Be 0

0

1 Reserved, Must Be 0

0

3 Enables U Channel Conversion

(1 = Enable) Three/Three-Phase Mode

0

4 Enables AUX Channel Conversion

(0 = Disable, 1 = Enable)

0

5 Divide External Clock by 2

(0 = No, 1 = Yes)

0

6 Park Interrupt Enable

0

7 ADC Interrupt Enable

(0 = Disable, 1 = Enable)

0

8 IRQ Pin Format (Edge or Level Based

Interrupt Requests) (0 = Edge)

0

10 Reverse Rotation (0 = 2/3, 1 = 3/3)

Forward Rotation (1 = Enable)

0

Bit 0, 1 Reserved for future use. Always write 0 to these bits.

Bit 3

Channel U Conversion Enable. If Bit 3 is set to 1, then

Channel U will be converted along with V, W and/or

AUX. This bit selects three-/three-phase mode.

Bit 4

Bit 5

Aux Channel Conversion Enable. If Bit 4 is set to

1, then the AUX input will be converted along with

the channels V, W and/or U.

If Bit 5 = 1, then the external clock will be divided by

two to derive the system clock. If the external clock

frequency is greater than 12.5 MHz, then this bit must

be set.

Bit 6 Park Interrupt Enable. This bit allows interrupts to

be generated when the Park rotation is completed.

Bit 7

ADC Interrupt Enable. This bit allows interrupts to

be generated via the IRQ pin when the analog-to-

digital conversion process is complete.

REV. B

–11–

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