NXP Semiconductors K32 L2A Series, Reference Manual, Page: 1269 / 1379

TSIx_GENCS field descriptions (continued)
Field Description
0 Out-of-range interrupt is allowed.
1 End-of-scan interrupt is allowed.
27–24
MODE
TSI analog modes setup and status
When
writing this field, it wil set up TSI analog modes, especially, setting MODE[3:2] to not 2'b00 will
configure TSI to noise detection modes. MODE[1:0] takes no effect on TSI operation mode and should
always write to 2'b00 for setting up. Refer to section "Noise detection mode" for details.
When
reading this field, it will return the analog status. It reads the status of TSI analog bias:
• value 0000: TSI bias is not ready;
• value 1000: TSI bias is ready.
0000 Set TSI in capacitive sensing(non-noise detection) mode.
0100 Set TSI analog to work in single threshold noise detection mode and the frequency limitation circuit
is disabled.
1000 Set TSI analog to work in single threshold noise detection mode and the frequency limitation circuit
is enabled to work in higher frequencies operations.
1100 Set TSI analog to work in automatic noise detection mode.
23–21
REFCHRG
REFCHRG
These bits indicate the reference oscillator charge and discharge current value.
000 500 nA.
001 1 μA.
010 2 μA.
011 4 μA.
100 8 μA.
101 16 μA.
110 32 μA.
111 64 μA.
20–19
DVOLT
DVOLT
These bits indicate the oscillator's voltage rails as below.
00 DV = 1.026 V; V
P
= 1.328 V; V
m
= 0.302 V.
01 DV = 0.592 V; V
P
= 1.111 V; V
m
= 0.519 V.
10 DV = 0.342 V; V
P
= 0.986 V; V
m
= 0.644 V.
11 DV = 0.197 V; V
P
= 0.914 V; V
m
= 0.716 V.
18–16
EXTCHRG
EXTCHRG
These bits indicate the electrode oscillator charge and discharge current value.
000 500 nA.
001 1 μA.
010 2 μA.
011 4 μA.
100 8 μA.
101 16 μA.
110 32 μA.
111 64 μA.
15–13
PS
PS
Table continues on the next page...
Chapter 49 Touch Sensing Input (TSI)
K32 L2A Reference Manual, Rev. 2, 01/2020
NXP Semiconductors 1269