Data Sheet
Bluegiga Technologies Oy
Page 35 of 52
Each data line carries two channels of audio data, meaning that if SDATA0, SDATA1 and SDATA2 are all
used, bi-directional 6 channel audio is possible. Please note that when the pins for UART 2 and UART 3 are
used as audio data lines, they cannot be used as UARTs.
Each function can be configured separately, so in case for example only one channel stereo is required, only
the data line on pin 84 or 85 need to be used, allowing for the rest of the data lines to be used for other
purposes.
For example if bi-directional audio is not required, the data input line on pin 84 can alternatively be configured
as a second SAIF0 data line (SAIF0_SDATA1), meaning it is possible to have 4-channel audio input or output
without sacrificing UART 2 or UART 3.
The module has been tested with the Freescale SGTL5000 audio codec which is used in the reference
design.
If the optional master clock is not used, it can be configured to operate as a GPIO.
For more information about the serial audio interfaces, please refer to refer to the i.MX28 Applications
Processor Reference Manual, chapter 35.
6.9 LCD
Pin#
Default function
Net name
143
Horizontal Sync
LCD_WR_RWN
144
Vertical Sync
LCD_RD_E
145
LCD Enable
LCD_CS
146
Dot clock
LCD_RS
147
Ground
GND
117-141
Data lines, see Table 19
LCD_D0-LCD_D23
Table 45: LCD signals
The LCDIF provides display data for external LCD panels from simple text-only displays to WVGA, 16/18/24
bpp color TFT panels. The LCDIF supports all of these different interfaces by providing fully programmable
functionality and sharing register space, FIFOs, and ALU resources at the same time. The LCDIF supports
RGB (DOTCLK) modes as well as system mode including both VSYNC and WSYNC modes.
Features:
Display resolution up to 800x480.
AXI-based bus master mode for LCD writes and DMA operating modes for LCD reads requiring
minimal CPU overhead.
8/16/18/24 bit per pixel.
Programmable timing and parameters for system, MPU, VSYNC and DOTCLK LCD interfaces to
support a wide variety of displays.
ITU-R BT.656 mode including progressive-to-interlace feature and RGB to YCbCr 4:2:2 color space
conversion to support 525/60 and 625/50 operation.
Ability to drive 24-bit RGB/DOTCK displays up to WVGA at 60 Hz. High robustness guaranteed by
512-pixel FIFO with under-run recovery.