User`s guide

Firmware Configuration
6-54 AT85C51SND3Bx Firmware User’s Guide
7691A–MP3–08/07
Table 6-19. Main features
 LCD interface configurations
This section configures the on-chip LCD interface for each LCD module to support.
Table 6-20. Interface type
Table 6-21. Cycle timings
Table 6-22. Automatic busy process
Table 6-23. Read / write operations
6.2.8 MMC / SD Card The”conf_mmc.h” is used to configure the MMC/SD card driver.
The following configuration is taken into account only if MMC/SD is enabled in
“conf_access.h”.
Definition Label Description Values
EMBEDDED_CODE_FONT Allow local font usage in code ENABLED
[DISABLED]
TEXT_SCROLLING Implement or not the code to have the text
scrolling available
[ENABLED]
DISABLED
IMAGE_SUPPORT Implement or not the functions to display
JPEG pictures
ENABLED
[DISABLED]
One of definition Labels to define Description
LCD_INTERFACE_TYPE_8080
LCD_INTERFACE_TYPE_6800
Access cycle type to communicate with the LCD
module:
8080 or 6800.
LCD_INTERFACE_CYCLE_NORMALIZED
LCD_INTERFACE_CYCLE_NOT_NORMALIZED
Chip Select selects the LCD device
(NORMALIZED) strictly or performs R/W operations
directly (NOT NORMALIZED).
Definition Labels Description
LCD_INTERFACE_ADDR_SETUP_TIME Address set-up time of the LCD module (unit in ns)
LCD_INTERFACE_ADDR_HOLD_TIME Address hold time of the LCD module (unit in ns)
LCD_INTERFACE_RD_PULSE_WIDTH Access width time in reading (unit in ns)
LCD_INTERFACE_WR_PULSE_WIDTH Access width time in writing (unit in ns)
LCD_INTERFACE_FULL_ACCESS_CYCLE_TIME Access cycle time optimized (TRUE) or set as being
the doubled time of the Access width time (FALSE)
LCD_INTERFACE_CYCLE_TIME Full access cycle time taken into account only if the
Access cycle time is set optimized (unit in ns)
Definition Labels Description
LCD_INTERFACE_BUSY_MASK Bits that return the busy status of the LCD module.
Set at 0, the busy check is disabled
LCD_INTERFACE_BUSY_ACTIVE_LEVEL High level for busy bits active (TRUE / FALSE)
Definition Labels Description
LCD_INTERFACE_INSTRUCTION_REG_PIN_LEVEL High level on pin A0/RS to select the
instruction/status register (TRUE / FALSE)