AR1100BRD Microchip Technology, AR1100BRD Datasheet - Page 21

• Manufacturer Part Number: AR1100BRD
• Description: 58T8314
• Manufacturer: Microchip Technology

Specifications of AR1100BRD

• Features: Automatically Detects Communication Type, Dynamic Rise Time And Sampling Capability
• Application Sub Type: Touch-Screen Controllers
• Kit Application Type: Communication & Networking

3.4
 2011 Microchip Technology Inc.
LED INDICATOR
3.3.3
The USB ‘report’ format is given below:
TABLE 3-3:
For flexibility, the value and behavior of the ‘tip switch’ data entity (“T”) reflects the pen
up/down state (similar to the ‘Button 1’ description in HID-MOUSE mode.
The Microchip AR1100 Touch Screen Controller Board is equipped with a LED indicator
to display controller status as follows:
TABLE 3-4:
TouchMode[2:0] = PU[2:0] Response to event PU (PEN/TOUCH UP)
b000
b001
b010
b011
b100
b101
1
2
3
4
5
6
Note 1:
LED blinks slowly (once per second)
LED blinks rapidly (5 times per second) Controller detects a touch.
LED is off
BYTE
0
0
X7
0
Y7
0
No touch report issued in response to the event
Touch report w/ P=0
Touch report w/ P=1
Touch report w/ P=1, then Touch report w/ P=0
Touch report w/ P=0, then Touch report w/ P=1, then Touch report w/ P=0
Touch report w/ P=0, then Touch report w/ P=1
T1
P
X
Y
7
Behavior
Mode: HID-DIGITIZER
Tip switch
Proximity (in range) – always 1
X ordinate of touch location (12 bits)
Y ordinate of touch location (12 bits)
TOUCH REPORT FORMAT – DIGITIZER
LED INDICATOR
0
0
X6
0
Y6
0
6
0
0
X5
0
Y5
0
5
0
0
X4
0
Y4
0
4
BIT
Controller is powered, awake
and no touch is detected.
Controller has no power or is
asleep (suspended).
0
0
X3
X11
Y3
Y11
3
0
0
X2
X10
Y2
Y10
Status
2
P
0
X1
X9
Y1
Y9
1
T
0
X0
X8
Y0
Y8
0
Operation
DS41604A-page 21