IC-TW2_13 Datasheet, PDF(25/28 Page) IC-Haus GmbH – 8-BIT SIN/COS INTERPOLATION IC

English

English German Russian Spanish Italian Polish Chinese Japanese Korean French Portuguese	Language :

IC-TW2_13 Datasheet, PDF (25/28 Pages) IC-Haus GmbH – 8-BIT SIN/COS INTERPOLATION IC

◁

iC-TW2 8-BIT SIN/COS INTERPOLATION IC

WITH INTEGRATED EEPROM

TEST MODES

Rev E2, Page 25/28

The iC-TW2 provides various control bits located in dif-

ferent registers to enable or disable certain test modes.

The majority of these is only required for extended chip

testing capability, others are required for production

test.

GRANULAR

Addr. 0x05; bit 7

R/W

Code

Function, test mode only

normal operation

test mode only

Table 35: A/B output edge granularity control

VC(1:0)

Code

Addr. 0x0A; bit 6:5

R/W

Function, test mode only

functionality

Table 36: Reference voltage ï¬ne tuning

CLKMODE

Addr. 0x0B; bit 0

R/W

Code

Function, test mode only

Select comparator clock default

Select direct oscillator clock

Table 37: Clock source select

CLKDLY

Addr. 0x0B; bit 2

R/W

Code

Function

Normal operation

Add clock delay

Table 38: Clock distribution delay line selection

Enabling the position monitor will allow access to the

internal absolute period position. The position can be

read through register 0x0F. This is considered a test

mode and should not be used during normal opera-

tion.

EN_MON

Addr. 0x0B; bit 3

R/W

Code

Function

Position monitor disabled default

Monitor enabled

Table 39: Position monitor control

MONITOR(7:0) Addr. 0x0F; bit 7:0

R/W

Code

Function

Access to the internal absolute period position. RT

only!

Table 40: Monitor register

EE_READ

Code

Addr. 0x0E; bit 7

Function

Normal operation

Read all iC-TW2 registers from the EEPROM. Bit is

automatically reset upon completion. Not required

during normal operation since this is done

automatically on start-up.

Table 41: EEPROM read command register

Production test control bits

Production test control bits are reserved bits. Do not

use the production test control bits during normal op-

eration. Keep reserved bits â0â.

Reserved

Addr. 0xC; bit 7:1

R/W

Reserved

Addr. 0xD; bit 7:0

R/W

Reserved

Addr. 0xE; bit 2:0

R/W

Code

Function

Normal operation

1 ...

Do not use or alter to

Table 42: Test modes

▷