
P95020 / Preliminary Datasheet
Revision 0.7.10
100
2010 Integrated Device Technology, Inc.
12.4 ADC AND TOUCH SCREEN CONTROLLER REGISTERS
12.4.1
PCON Register
– ADC_TSC ENABLE REGISTER
IC Address = Page-0: 39(0x39), C Address = 0xA039
Bit
Bit Name
Def.
Set.
User
Type
Value
Description / Comments
0
ADC_TSC_EN
0b
RW
0 = Disabled
1 = Enabled
Enable ADC or Touch screen controller. When disabled, the
ADC_TSC module retains the configuration register settings but the
clock is gated (low power mode).
[7:1]
RESERVED
0000000b RW
RESERVED
12.4.2
REAL TIME MEASUREMENT STATUS REGISTER
IC Address = Page-0: 192(0xC0), C Address = 0xA0C0
Bit
Bit Name
Def.
Set.
User
Type
Value
Description / Comments
0
PENDOWN
0b
R
0 = No Alert
1= Alert Exists
Pendown status in touch screen mode. Alert will be asserted when
pendown detected. Deassert when pendown is not detected.
1
THI_ALERT
0b
R
0 = No Alert
1= Alert Exists
Temperature higher than specified status
2
TLO_ALERT
0b
R
0 = No Alert
1= Alert Exists
Tempreature lower than specified status
3
BHI_ALERT
0b
R
0 = No Alert
1= Alert Exists
Battery voltage higher than specified status
4
BLO_ALERT
0b
R
0 = No Alert
1= Alert Exists
Battery voltage lower than specified status
5
VSYSHI_ALERT
0b
R
0 = No Alert
1= Alert Exists
VSYS higher than specified status
6
VSYSLO_ALERT
0b
R
0 = No Alert
1= Alert Exists
VSYS lower than specified status
7
BLO_EXT_ALERT
0b
R
0 = No Alert
1= Alert Exists
Battery voltage extremely low status
12.4.3
X MEASUREMENT / AUXILIARY CHANNEL 1 RESULT REGISTER
IC Address = Page-0: 193(0xC1), C Address = 0xA0C1
IC Address = Page-0: 194(0xC2), C Address = 0xA0C2
Bit
Bit Name
Def.
Set.
User
Type
Value
Description / Comments
[11:0]
RESULTS_CH1
000h
R
X position voltage in TSC mode / Channel 1 voltage in ADC mode
[15:12]
RESERVED
R
RESERVED
12.4.4
Y MEASUREMENT / AUXILIARY CHANNEL 2 RESULT REGISTER
IC Address = Page-0: 195(0xC3), C Address = 0xA0C3
IC Address = Page-0: 196(0xC4), C Address = 0xA0C4
Bit
Bit Name
Def.
Set.
User
Type
Value
Description / Comments
[11:0]
RESULTS_CH2
000h
R
Y position voltage in TSC mode / Channel 2 voltage in ADC mode
[15:12]
RESERVED
R
RESERVED
12.4.5
Z1 MEASUREMENT/ AUXILIARY CHANNEL 3 RESULT REGISTER
IC Address = Page-0: 197(0xC5), C Address = 0xA0C5
IC Address = Page-0: 198(0xC6), C Address = 0xA0C6
Bit
Bit Name
Def.
Set.
User
Type
Value
Description / Comments
[11:0]
RESULTS_CH3
000h
R
Channel-3 voltage (ADC mode) or Z1 (TSC mode)
[15:12]
RESERVED
R
RESERVED
12.4.6
Z2 MEASUREMENT / AUXILIARY CHANNEL 4 RESULT REGISTER
IC Address = Page-0: 199(0xC7), C Address = 0xA0C7
IC Address = Page-0: 200(0xC8), C Address = 0xA0C8
Bit
Bit Name
Def.
Set.
User
Type
Value
Description / Comments
[11:0]
RESULTS_CH4
000h
R
Channel-4 voltage (ADC mode) or Z2 (TSC mode)
[15:12]
RESERVED
R
RESERVED