User`s guide

Firmware Features
2-8 AT85C51SND3Bx Firmware User’s Guide
7691A–MP3–08/07
2.11.2 Configuration  Enable/disable
 Bus format:
– automatic: depends on card type
– 1-bit
2.12 Display This module is the display management library.
2.12.1 Features 
2.12.2 Configuration  Interface configuration to fit display controller
– type: I80/6800
– timings
2.13 Keyboard This module is the keypad driver.
2.13.1 Features  Matrix choice leads to dedicated hardware schematic
 Automatic event generation:
– key press
– key release
– key repeat
– key long press
2.13.2 Configuration  Matrix size:
– from 4 keys up to 12 keys
 Keypad timings:
– debounce
– auto-repeat start
– auto-repeat interval
– long press
2.14 Power Manager This module is the system power driver.
2.14.1 Features  Dynamic power management
 Battery level information
 Power on/off
2.14.2 Configuration  Power source:
– DC-DC, Regulator…
– voltage
 Power off