Phone:

+49 371 33 77 - 0

Fax::

+49 371 33 77 272

Internet:

www.gemac-chemnitz.de

Email:

interpolation@gemac-chemnitz.de

sales@gemac-chemnitz.de

GEMAC

Gesellschaft für

Mikroe lektronikanwendung Chemnitz mbH

Zwickauer Straße 227

D-09116 Chemnitz, Germany

Date: 20.04.04

Page 17 of 30

Title:

Data Sheet GC-IP200

Name of Document:

43500-DB-2-1-E-IP200.pdf

PHI

Interpolation Result - Phase Angle

Read Address

0x03 (Byte 1/0)

15:8

7:0

0x00

PHI

PHI

Interpolated Phase Angle of Input Signals (unsigned, binary)

Scaling:

0 ... 200 = 0°... 360°, if IR(2) = 1

0 ... 160 = 0°... 360°, if IR(2) = 0

DPHI

Interpolation Result - Phase Angle Difference

Read Address

0x03 (Byte 3/2)

15:8

7:0

0x00

DPHI

DPHI

Difference to last Phase Angle (two’s complement)

Scaling:

-100 ... +100 = -180°... +180°, if IR(2) = 1

-80 ... +80 = -180°... +180°, if IR(2) = 0

CFG0

Configuration Register 0

Read Address

0x01 (Byte 1)

Write Address

0x00

Default

Configuration pins will be read (IT0=0)

7

6

5:3

2:0

SPEED

GFE

IT(2:0)

IR(2:0)

IR(2:0)

Interpolation Rate

Square Wave Periods A/B

IT(2:0)

000

160

40

000

1

001

80

20

001

*)

2

010

40

10

010

4

011

20

5

011

*)

8

100

200

50

100

16

101

100

25

101

*)

32

110

50

12½

110

64

111

25

6¼

111

*)

128

*)

only selectable over SPI

GFE

0

Glitch Filter deactivated

1

Glitch Filter activated

SPEED

0

Configure speed monitoring for A/B outputs

1

Configure speed monitoring for internal counter



The double function pins SDI and TRG are used for initializing of the GFE and SPEED bits during reset

processing. The IT0 bit can only be assigned over serial interface. For more information refere also to

IP200 application notes.