16 bit speed counter register, 16 bit speed reference register – Samsung S3F401F User Manual

Page 58

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ENCODER COUNTER

S3F401F_UM_REV1.00

4-10

16 Bit Speed Counter Register

SCNT (0x014) Access: Read/Write

31

30 29 28 27 26 25 24

R/W-0

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

23

22 21 20 19 18 17 16

R/W-0

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

15

14 13 12 11 10 9 8

SCV [15:8]

R/W-0

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

7

6 5 4 3 2 1 0

SCV [7:0]

R/W-0

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

W: Write

R: Read

-0: 0 After reset

-1: 1 After reset

-U: Undefined after reset

The Current Speed Counter Value Field

SCV

0x0000 ~ 0xFFFF

16 Bit Speed Reference Register

SREF (0x018) Access: Read/Write

31

30 29 28 27 26 25 24

R/W-0

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

23

22 21 20 19 18 17 16

R/W-0

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

15

14 13 12 11 10 9 8

SREFDAT [15:8]

R/W-0

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

7

6 5 4 3 2 1 0

SREFDAT [7:0]

R/W-0

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

W: Write

R: Read

-0: 0 After reset

-1: 1 After reset

-U: Undefined after reset

The Reference Value for Speed Counter

SREFDAT

0x0000 ~ 0xFFFF

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