IC-MU_17 Datasheet, PDF(44/66 Page) IC-Haus GmbH – MAGNETIC OFF-AXIS POSITION ENCODER

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IC-MU_17 Datasheet, PDF (44/66 Pages) IC-Haus GmbH – MAGNETIC OFF-AXIS POSITION ENCODER - POLE WIDTH 1.28MM

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iC-MU MAGNETIC OFF-AXIS

POSITION ENCODER - POLE WIDTH 1.28MM

Rev D1, Page 44/66

command SWITCH is executed. By reading STATUS1

it is possible to control if there was an error while exe-

cuting the command. After the next startup or after the

execution of the command SOFT_RESET iC-MU starts

with the interface configurated with MODEA_NEW and

RPL_NEW.

MT Interface Daisy Chain

The MT interface daisy chain mode gives direct access

to an external multiturn sensor for calibration purposes.

MODEA

Code

0x2

0x5

0x6

0x7

Function

BiSS

SSI+ERRL

SSI+ERRH

ExtSSI

Table 69: MT Interface Daisy Chain: Possible MODEA

configuration

To this end input pin MA (PA1) receiving the BiSS mas-

terâs clock signal is fed through to output pin MTC and

the input pin MTD is activated in place of the input pin

SLI (PA2). Upon enabling this mode the single cycle

timeout (see Fig. 3) must have elapsed and an addi-

tional init command must be carried out by the BiSS

master, before it can run the first register communica-

tion.

Note:

Additional condition RSSI = 1 when using GET_MT

and MODEA = 0x05, 0x06 or 0x07.

Hint:

First set GET_MT than RSSI to activate direct com-

munication to Multiturn Sensor in SSI modes.

Example: external multiturn sensor built with iC-MU is

connected to the MT interface of a first iC-MU, prepar-

ing the singleturn data. With GET_MT enabled, the

external multiturn can then be addressed via BiSS ID 0

and the singleturn via BiSS ID 1. This temporal chain

operation simplifies device parametrization during en-

coder manufacturing.

Making use of the BiSS Interface bus capabilities,

iC-MU can connect the external multiturn sensor to

the BiSS master controller in modes MODEA = 0x02

(BiSS) and MODEA = 0x05-0x07 (SSI with Error bit and

ExtSSI; additional condition RSSI = 1) when GET_MT

is enabled.

GET_MT

Code

Addr. 0x10; bit 7

Function

Disabled

MT interface daisy chain

Table 70: Direct BiSS communication enable for MT

sensor via I/O Interface

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