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