AR1100-I MICROCHIP [Microchip Technology], AR1100-I Datasheet - Page 22

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

5.2
Enable touch reporting.
COMMAND PACKET:
TABLE 5-3:
RESPONSE PACKET:
TABLE 5-4:
5.3
Disable touch reporting.
COMMAND PACKET:
TABLE 5-5:
RESPONSE PACKET:
TABLE 5-6:
DS41606B-page 22
BYTE#
BYTE#
BYTE#
BYTE#
1
2
3
1
2
3
4
1
2
3
1
2
3
4
Command: TOUCH_ENABLE
Command: TOUCH_DISABLE
STATUS
STATUS
VALUE
VALUE
VALUE
VALUE
0x55
0x01
0x12
0x55
0x02
0x12
0x55
0x01
0x13
0x55
0x02
0x13
COMMAND: TOUCH_ENABLE
RESPONSE: TOUCH_ENABLE
COMMAND: TOUCH_DISABLE
RESPONSE: TOUCH_DISABLE
SYNC
SIZE
COMMAND
SYNC
SIZE
STATUS
COMMAND
SYNC
SIZE
COMMAND
SYNC
SIZE
STATUS
COMMAND
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
5.4
The
controller-based calibration sequence. A RESPONSE
packet is returned for each calibration point touched.
COMMAND PACKET
TABLE 5-7:
RESPONSE PACKET (for each calibration point
touched, then released):
TABLE 5-8:
5.5
Read one or more operational registers.
COMMAND PACKET:
TABLE 5-9:
RESPONSE PACKET:
TABLE 5-10:
BYTE#
BYTE# VALUE
BYTE#
BYTE#
4+N
...
1
2
3
4
5
1
2
3
4
5
6
1
2
3
4
1
2
3
4
CALIBRATE
Command: CALIBRATE
Command: REG_READ
REG[ADR+N-1] REGISTER VALUE
0x55
0x04
0x20
0x00
ADR
VALUE
REG[ADR]
TYPE
0x55
0x02
0x14
N
STATUS
STATUS
VALUE
VALUE
0x55
0x20
0x55
0x02
0x14
N+2
...
COMMAND: CALIBRATE
RESPONSE: CALIBRATE
COMMAND: REG_READ
RESPONSE: REG-READ
SYNC
SIZE
COMMAND
REGISTER ADDRESS (MSB)
REGISTER ADDRESS (LSB)
NUMBER OF BYTES TO READ
SYNC
BYTE COUNT
COMMAND
0x01: 4-Point – Full interpola-
tion
0x02: 9-Point
0x03: 25-Point
0x04: 4-Point (AR1000 style)
 2011 Microchip Technology Inc.
command
SYNC
SIZE
STATUS
COMMAND
SYNC
SIZE
STATUS
COMMAND
REGISTER VALUE
REGISTER VALUE(S)
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
initiates
the