PXD20 Datasheet, PDF (4/130 Pages) Freescale Semiconductor, Inc – PXD20 Microcontroller

Overview
1.2 Block diagram
PXD20 Block Diagram
System
VREG
Oscillator
FMPLL x 2
RTC/32 kHz
Oscillator
Interrupt
Controller
Debug
JTAG
Nexus
Class 3+
Crossbar Masters
e200z4d Core
(4 KB I-Cache)
Z160
2D
GFX
VIU2
DCU
Lite
DCU
TCON RSDS
MMU
16-ch DMA
Crossbar Switch (XBAR)
Memory Protection Unit (MPU)
PIT
SWT
STM
Boot
Assist
Module
(BAM)
2 MB
Flash
ECC
64 KB
SRAM
Crossbar Slaves
1 MB
RLE
Graphics PBRIDGE
SRAM
Decode
Quad
SPI V02
Communications I/O System
DRAM
Interface
eMIOS A eMIOS B
3x
4x
3x
16-ch
16-ch
CAN UART/LIN SPI
4x
I²C
SGM
20-ch
ADC
10-bit
SSD
6x
SMD
ADC
– Analog-to-digital converter
CAN
– Controller area network controller
DCU
– Display control unit
DMA
– Direct memory access controller
DRAM – Dynamic random-access memory
ECC
– Error correction code
eMIOS – Timed input/output
FMPLL – Frequency-modulated phase-locked loop
GFX
I²C
– OpenVG graphics accelerator
– Inter-integrated circuit controller
JTAG
– Joint Test Action Group interface
MMU
– Memory management unit
PBRIDGE – Peripheral I/O bridge
PIT
– Periodic interrupt timer
RLE
– Run length encoding
RTC
– Real time clock
RSDS – Reduced-swing differential sgnal interface
SGM
– Sound generator module
SMD SSD – Stepper motor driver/stepper stall detect
SPI
– Serial peripheral interface controller
SRAM – Sraric random-access memory
STM
– System timer module
SWT
– Software watchdog timer
TCON – Timing controller
UART/LIN – Universal asynchronous receiver/transmitter/
local interconnect network
VIU2
– Video input unit
VLE
– Variable-length execution set
VREG – Voltage regulator
Figure 1. PXD20 block diagram
PXD20 Microcontroller Data Sheet, Rev. 2
4
Preliminary—Subject to Change Without Notice
Freescale Semiconductor