PXD20 Datasheet, PDF (16/130 Pages) Freescale Semiconductor, Inc – PXD20 Microcontroller

Overview
1.4.18 Video Input Unit (VIU2)
The VIU2 is a crossbar master module accepting an ITU656 compatible video input stream on a parallel interface, converting
the pixel data to RGB or YUV format and transferring the video image to internal frame buffer memory or external DRAM if
available.
• Supports 8-bit/10-bit ITU656 video input
• Output formats:
— RGB888
— RGB565
— 8-bit monochrome
— YCrCb 4:2:2
• Video downscaling
• Contrast and Brightness adjustment
• De-interlace for interlaced video image
• Internal DMA engine for data transfer to memory
1.4.19 Boot assist module (BAM)
The BAM is a block of read-only memory that is programmed once by Freescale. The BAM program is executed every time
the MCU is powered-on or reset in normal mode. The BAM supports different modes of booting. They are:
• Booting from internal flash memory
• Serial boot loading (A program is downloaded into RAM via CAN or LIN and then executed)
• Booting from external memory
Additionally the BAM:
• Enables and manages the transition of the MCU from reset to user code execution
• Configures device for serial bootload
• Enables multiple bootcode starting locations out of reset through implementation of search for valid Reset
Configuration Halfword
• Enables or disables software watchdog timer out of reset through BAM read of Reset Configuration Halfword option
bit
1.4.20 Enhanced Modular Input/Output System (eMIOS)
This device has two eMIOS modules, each with 16 channels supporting a range of 16-bit Input Capture, Output Compare, Pulse
Width Modulation, and Quadrature Decode functions.
• Selectable clock source from primary FMPLL, secondary FMPLL, external 4–16 MHz oscillator or 16 MHz Internal
RC oscillator on a per module basis
• Timed I/O channels with 16-bit counter resolution
• Buffered updates
• Support for shifted PWM outputs to minimize occurrence of concurrent edges
• Edge aligned output pulse width modulation
— Programmable pulse period and duty cycle
— Supports 0% and 100% duty cycle
— Shared or independent time bases
• Programmable phase shift between channels
• 4 channels of Quadrature Decode
• DMA transfer support
PXD20 Microcontroller Data Sheet, Rev. 2
16
Preliminary—Subject to Change Without Notice
Freescale Semiconductor