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Struck Documentation
SIS8300-KU
MTCA.4 Digitizer
Page 31 of 92
7.5.3 User Control/Status register
#define SIS8300_USER_CONTROL_STATUS_REG
0x04
The control register is implemented as a selective J/K register, a specific function is enabled
by writing a 1 into the set/enable bit, the function is disabled by writing a 1 into the
clear/disable bit (which location is 16-bit higher in the register). An undefined toggle status
will result from setting both the enable and disable bits for a specific function at the same
time. The only function at this point in time is user LED on/off.
On read access the same register represents the status register.
Bit
write Function
read Function
31
Clear reserved 15 (*)
0
30
Clear reserved 14 (*)
0
29
Clear reserved 13 (*)
0
28
Clear reserved 12 (*)
0
27
Clear reserved 11 (*)
0
26
Clear reserved 10 (*)
0
25
Clear reserved 9 (*)
0
24
Clear reserved 8 (*)
0
23
Clear reserved 7 (*)
0
22
Clear reserved 6 (*)
0
21
Clear reserved 5 (*)
0
20
Clear reserved 4 (*)
0
19
Clear reserved 3 (*)
0
18
Clear reserved 2 (*)
0
17
Switch off LED test
0
16
Switch off user LED (*)
0
15
Set reserved 15
Status reserved 15
14
Set reserved 14
Status reserved 14
13
Set reserved 13
Status reserved 13
12
Set reserved 12
Status reserved 12
11
Set reserved 11
Status reserved 11
10
Set reserved 10
Status reserved 10
9
Set reserved 9
Status reserved 9
8
Set reserved 8
Status reserved 8
7
Set reserved 7
Status reserved 7
6
Set reserved 6
Status reserved 6
5
Set reserved 5
Status reserved 5
4
Set reserved 4
Status reserved 4
3
Set reserved 3
Status reserved 3
2
Set reserved 2
Status reserved 2
1
Switch on LED test
Status LED test
0
Switch on user LED
Status User LED (1=LED on, 0=LED off)
(*) denotes power up default setting