Information
TSIx_GENCS field descriptions (continued)
Field Description
10110 23 times per electrode.
10111 24 times per electrode.
11000 25 times per electrode.
11001 26 times per electrode.
11010 27 times per electrode.
11011 28 times per electrode.
11100 29 times per electrode.
11101 30 times per electrode.
11110 31 times per electrode.
11111 32 times per electrode.
18–16
PS
Electrode Oscillator Prescaler
This field can be changed only if the TSI module is disabled (TSIEN bit = 0)
000 Electrode Oscillator Frequency divided by 1
001 Electrode Oscillator Frequency divided by 2
010 Electrode Oscillator Frequency divided by 4
011 Electrode Oscillator Frequency divided by 8
100 Electrode Oscillator Frequency divided by 16
101 Electrode Oscillator Frequency divided by 32
110 Electrode Oscillator Frequency divided by 64
111 Electrode Oscillator Frequency divided by 128
15
EOSF
End of Scan Flag
This flag is set when all active electrodes are scanned is ended after a scan trigger. Writing 1 to this bit will
clear the flag to 0.
14
OUTRGF
Out of Range Flag
This flag is set if the result register of the low-power enabled electrode is outside the range defined by the
TSI_THRESHOLD register. This flag is set only when the TSI is in low-power mode. It can be read after
the CPU wakes up. Writing 1 to this bit will clear the flag to 0.
13
EXTERF
External Electrode Error Occurred
This flag is set when an active electrode has a result register either 0x0000 or 0xFFFF. Writing 1 to this bit
will clear the flag to 0.
0 No fault happend on TSI electrodes.
1 Short to VDD or VSS was detected on one or more electrodes.
12
OVRF
Overrun Error Flag
This flag is set when a scan trigger occurs while a scan is still in progress. Writing 1 to this bit will clear the
flag to 0.
0 No overrun.
1 Overrun occurred.
11–10
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
9
SCNIP
Scan In Progress Status
Table continues on the next page...
Memory map and register definition
K20 Sub-Family Reference Manual, Rev. 1.1, Dec 2012
1420
Preliminary
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