Atmel ARM-Based Evaluation Kit for SAM4S16C, 32-Bit ARM® Cortex® Microcontroller ATSAM4S-WPIR-RD ATSAM4S-WPIR-RD Data Sheet

879

SAM4S Series [DATASHEET]

Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14

TC_QISR

0x400100D4 (0), 0x400140D4 (1)

Read-only 

0: No Index input change since the last read of TC_QISR.
1: The IDX input has changed since the last read of TC_QISR.

0: No change on rotation direction since the last read of TC_QISR.
1: The rotation direction changed since the last read of TC_QISR.

0: No quadrature error since the last read of TC_QISR.
1: A quadrature error occurred since the last read of TC_QISR.

Returns an image of the actual rotation direction.

31

30

29

28

27

26

25

24

–

–

–

–

–

–

–

–

23

22

21

20

19

18

17

16

–

–

–

–

–

–

–

–

15

14

13

12

11

10

9

8

–

–

–

–

–

–

–

DIR

7

6

5

4

3

2

1

0

–

–

–

–

–

QERR

DIRCHG

IDX