AR1100-I MICROCHIP [Microchip Technology], AR1100-I Datasheet - Page 35

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

8.4
Initialize the boot load process – executed as the first
step after Reset.
COMMAND PACKET:
TABLE 8-6:
RESPONSE PACKET:
TABLE 8-7:
8.5
The WRITE command facilitates programming Flash or
EEPROM. The Most Significant Byte of the 24-bit
address in the WRITE command dictates the destina-
tion. The AR1100 maps Flash to 0x000000 and
EEPROM, to 0xF00000.
COMMAND PACKET:
TABLE 8-8:
 2011 Microchip Technology Inc.
BYTE#
BYTE#
BYTE#
N+6
...
1
2
3
4
5
6
7
1
2
3
1
2
3
4
Command: INIT
Command: WRITE
ADDR 07:00
ADDR 15:08
ADDR 23:16
[DATA N]
[DATA 1]
STATUS
VALUE
VALUE
VALUE
0xF2
0x55
0x55
0x01
0xF1
0x55
0xF1
N+4
...
2
COMMAND: INIT
RESPONSE: INIT
COMMAND: WRITE
SYNC
SIZE
COMMAND
SYNC
SIZE
STATUS
COMMAND
SYNC
SIZE (N = # of data bytes
to write)
COMMAND
ADDRESS
DATA (to be written)
DESCRIPTION
DESCRIPTION
DESCRIPTION
RESPONSE PACKET:
TABLE 8-9:
8.6
Read from device Flash or EEPROM.
REMINDER: Flash data will be encrypted while
EEPROM data will not be encrypted.
COMMAND PACKET:
TABLE 8-10:
RESPONSE PACKET:
TABLE 8-11:
BYTE#
BYTE#
BYTE#
1
2
3
4
5
6
7
1
2
3
4
5
6
7
1
2
3
4
Command: READ
ADDR 07:00
ADDR 15:08
ADDR 23:16
[DATA N]
STATUS
[DATA 1]
STATUS
VALUE
VALUE
VALUE
0xF3
0xF3
0x55
0x05
0x55
0x55
0xF2
N+2
...
N
2
RESPONSE: WRITE
COMMAND: READ
RESPONSE: READ
SYNC
SIZE
STATUS
COMMAND (WRITE)
SYNC
SIZE
COMMAND
ADDRESS
# Bytes to Read
SYNC
SIZE (N = # of data bytes
to read)
STATUS
COMMAND
DESCRIPTION
DESCRIPTION
DESCRIPTION
DS41606B-page 35