AR1100-I/SO Microchip Technology, AR1100-I/SO Datasheet - Page 32

• Manufacturer Part Number: AR1100-I/SO
• Description: 58T8312
• Manufacturer: Microchip Technology

Specifications of AR1100-I/SO

• Resolution (bits): 12bit
• Supply Voltage Range: 3.3V To 5V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: SOIC
• No. Of Pins: 20

AR1100 RESISTIVE USB AND RS-232 TOUCH SCREEN CONTROLLER
8.1
The boot load operation uses the same data format/
protocol as the touch application. Commands are
described below.
TABLE 8-1:
STATUS code(s) returned in RESPONSE packet.
TABLE 8-2:
8.2
Request firmware version packet – includes Boot
mode.
COMMAND PACKET:
TABLE 8-3:
RESPONSE PACKET:
TABLE 8-4:
DS41606A-page 32
BYTE#
BYTE#
1
2
3
4
6
7
8
9
1
2
3
Command Summary
Command: VERSION
0x55
0x06
STATUS
0x01
VER_MAJOR VERSION (Major)
VER_MINOR VERSION (Minor)
VER_REV
MODE
VALUE
VALUE
CMND
CODE
0x01
0xF0
0xF1
0xF2
0xF3
0xF4
0xF5
0x00
0x01
0x55
0x01
0x01
COMMAND SUMMARY
COMMAND STATUS SUMMARY
COMMAND: VERSION
RESPONSE: VERSION
SYNC
SIZE
COMMAND
SYNC
SIZE
STATUS
COMMAND
VERSION (Revision – inter-
nal)
Boot mode
0: Normal
1: Write boot – upper Flash
2: Write application – lower
3: Write application – upper
DESCRIPTION
DESCRIPTION
BAD PACKET
NAME
WRITE_MODE
OK
Preliminary
VERSION
NAME
RESET
WRITE
FLUSH
INIT
READ
8.3
Execute a device Reset. If in USB mode, the device will
detach from the bus and re-enumerate.
COMMAND PACKET:
TABLE 8-5:
RESPONSE PACKET:
None.
BYTE#
Packet was malformed, unrecognized or timed out
1
2
3
Command: RESET
Return version number and mode
Software device reset
Initialize boot loader
Write-memory contents
Read-memory contents
Flush Flash cache
Write non-volatile BOOT mode value
VALUE
0x55
0x01
0xF0
COMMAND: RESET
DESCRIPTION
 2011 Microchip Technology Inc.
No error
SYNC
SIZE
COMMAND
DESCRIPTION
DESCRIPTION