AN1921 Motorola / Freescale Semiconductor, AN1921 Datasheet - Page 22

• Manufacturer Part Number: AN1921
• Description: AN1921 General DSP568xx Interface Examples using the Embedded SDK
• Manufacturer: Motorola / Freescale Semiconductor

Integrating Devices With the EVM Board
22
Control
Ctrl-G
Ctrl-M
Ctrl-O
Ctrl-Q
Ctrl-A
Ctrl-B
Ctrl-C
Ctrl-D
Ctrl-E
Ctrl-H
Ctrl-K
Ctrl-N
Ctrl-P
Ctrl-R
Ctrl-S
Code
Ctrl-F
Ctrl-J
Ctrl-L
Ctrl-T
Ctrl-I
Mode Byte
B0
B1
B2
B3
B4
B7
Cursor Home
Set/Adjust Backlight Brightness
Set/Adjust Contrast
Hide Cursor
Underline Cursor
Block Cursor
Sound Bell/Buzzer
Backspace
Horizontal Tab
Line Feed
Reverse Line Feed
Form Feed/Clear Screen
Carriage Return
Backlight On
Backlight Off
Set Cursor Position
Clear Column
Set Relays
Define Custom Character
Download Keypad Tags
“Key Beeps”
“Key Press Format”
“LCD Echo”
“Mask Key Presses”
“Auto Backlight”
“Delayed Response”
Function
Interface Examples Using the Embedded SDK
Name
Table A-2.
Table A-3. LCD+ Control Codes
LCD+ Keypad Options Table
Beep buzzer during each key press
Send one byte for key down and one for key up
Display all key presses as asterisks on LCD
Turns on backlight with any key press and off 4 seconds
after last key press
Provide 3.0ms delay in response to a command.
Required for interfacing with BS2
Echo key press data ASCII representation to LCD display
1 Byte (0x0c)
1 Byte(0x01)
2 Bytes (0x02) + 0-255
2 Bytes (0x03) + 0-255
1 Byte (0x04)
1 Byte (0x05)
1 Byte (0x06)
1 Byte (0x07)
1 Byte (0x08)
1 Byte (0x09)
1 Byte (0x0a)
1 Byte (0x0b)
1 Byte (0x0d)
1 Byte (0x0e)
1 Byte (0x0f)
2 Bytes (0x10) + 0-79
1 Bytes (0x11)
2 Bytes (0x12) + 0-255
10 Bytes (0x13) + 0-7 + 8 Bytes
17 Bytes (0x14) + 16 New keys
Total bytes needed +
Command_Data
Description
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Return
Data