AR1100-I MICROCHIP [Microchip Technology], AR1100-I Datasheet - Page 25

• Manufacturer Part Number: AR1100-I
• Description: AR1100 Resistive USB and RS-232 Touch Screen Controller
• Manufacturer: MICROCHIP [Microchip Technology]

6.0
TABLE 6-1:
 2011 Microchip Technology Inc.
ADDR
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
0x0A
0x0B
0x0C
0x0D
0x0E
0x0F
0x10
0x11
0x12
0x13
0x14
0x15
Note 1:
2:
3:
4:
RisetimeCapTime-
out
RisetimeQuick
TouchThreshold
SensitivityFilter
SamplingFast
SamplingSlow
AccuracyFilterFast # of touch positions to
AccuracyFilter-
Slow
SpeedThreshold
DitherFilter
SleepDelay
PenUpDelay
TouchMode
TouchOptions
CalibrationInset
PenStateReport-
Delay
Reserved
TouchReportDelay *0.5 msec
RisetimeDefault
RisetimeModifier
Status
Debug
CONFIGURATION REGISTERS
OPTIONS/FLAGS: TEN (Touch Enable); VCF (Verbose Cal Feedback); DRT (Dynamic Risetime Enable);
48W (0 = 4-Wire, 1 = 8-Wire); CALE (Calibration Enable);
STATUS (READ ONLY): TCHK (Result of Touch CHK DIAG); EEV (Params in EEPROM used); CALV
(Calibration valid); JMP (State of mode Jumper); DRT (DYN RISE TIME CAP MEAS’D); 8W (Configured
for 8W Sensor); 5W (Configured for 5W Sensor); 4W (Configured for 4W Sensor);
TOUCH MODE(S) (specified for each event: PD, PM and PU): 0: no report(s) issued; 1: report (P = 0); 2:
report (P = 1); 3: report (P = 1), report (P = 0); 4: report (P = 0), report (P = 1); report (P = 0), 5: report (P
= 0), report (P = 1);
DEBUG FLAGS (optional): RT (Risetime Report); RTC (Risetime CAP Report); RTR (Risetime RES
Report).
NAME
CONFIGURATION REGISTER SUMMARY
*170 usec
*10 usec
8-bit ADC –
touch_check()
8-bit ADC
# of ADC samples/touch
to average
# of ADC samples/touch
to average
average
# of touch positions to
average
8-bit ADC (raw touch
coordinates)
size of anti-dithering win-
dow 1/4096 of sensor
dim.
*250 msec
touch process loop count
(Note 3)
(Note 1)
2x % sensor dimension -
units: 1/256 (e.g.
64=25%)
*170 usec
—
*21 usec
(value-128) * 10 usec
(i.e., 128 = 0, 127 = -1,
129 = +10)
(Note 2)
(Note 4)
DECRIPTION
TEN
TCH
PD2
—
K
7
PD1
VCF
EEV CALV JMP DRT 8W
—
Value of: 1, 2, 4, 8, 16, 32, 64, 128
Value of: 1, 2, 4, 8, 16, 32, 64, 128
6
PD0
—
—
5
Value of: 0-255
Value of: 0-255
Value of: 0-255
Value of: 0-255
Value of: 0-255
Value of: 0-255
Value of: 0-255
Value of: 0-255
Value of: 1-128
Value of: 0-255
Value of: 0-255
Value of: 0-255
Value of: 0-255
Value of: 1-8
Value of: 1-8
PM1 PM0 PU2 PU1
RT
C
4
—
DRT
RTC RTR
3
—
2
48W CALE 0x89
5W
—
1
DS41606B-page 25
PU0
4W
—
0
DFLT
0x18
0x02
0x80
0x04
0x04
0x08
0x08
0x08
0x02
0xB1
0x04
0x00
0x00
0x00
0x03
0x00
0x00
0x40
0x80
0x80
0x00