Touchscreen Controller Registers
12.5.1.11 ADCSTAT Register (offset = 44h) [reset = 10h]
ADCSTAT is shown in
and described in
.
General Status bits @TSC_ADC_SS_Sequencer_Status Register
Figure 12-15. ADCSTAT Register
31
30
29
28
27
26
25
24
Reserved
R-0h
23
22
21
20
19
18
17
16
Reserved
R-0h
15
14
13
12
11
10
9
8
Reserved
R-0h
7
6
5
4
3
2
1
0
PEN_IRQ1
PEN_IRQ0
FSM_BUSY
STEP_ID
R-0h
R-0h
R-0h
R-10h
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 12-15. ADCSTAT Register Field Descriptions
Bit
Field
Type
Reset
Description
31-8
Reserved
R
0h
-
7
PEN_IRQ1
R
0h
PEN_IRQ[1] status
6
PEN_IRQ0
R
0h
PEN_IRQ[0] status
5
FSM_BUSY
R
0h
Status of OCP FSM and ADC FSM.
0 = Idle.
1 = Busy.
4-0
STEP_ID
R
10h
Encoded values:.
10000 = Idle.
10001 = Charge.
00000 = Step 1.
00001 = Step 2.
00010 = Step 3.
00011 = Step 4.
00100 = Step 5.
00101 = Step 6.
00110 = Step 7.
00111 = Step 8.
01000 = Step 9.
01001 = Step 10.
01010 = Step 11.
01011 = Step 12.
01100 = Step 13.
01101 = Step 14.
01110 = Step 15.
01111 = Step 16.
1049
SPRUH73H – October 2011 – Revised April 2013
Touchscreen Controller
Copyright © 2011–2013, Texas Instruments Incorporated