PXN20PB Datasheet, PDF (4/23 Pages) Freescale Semiconductor, Inc – 32-bit Power Architecture® Dual Core Microcontrollers for Industrial Networking

Features
2.2 PXN20 Block Diagram
Figure 1 shows a top-level block diagram of the PXN20 microcontrollers.
PXN20 Block Diagram
Debug
JTAG
Nexus3 (Z6)
Nexus2+ (Z0)
e200z0 Core
VLE
Masters
e200z650 Core
VLE
MMU (32 TLB)
FPU/SPE
32 KB Cache
4/8 Way
32 kHz
XTAL
128 kHz
IRC
4-40 MHz
XTAL
FMPLL
16 MHz
IRC
Semaphores
16-ch DMA
Mux
Ethernet
MLB-DIM FlexRay™
VREG
Controller
RTC/API
SWT
STM
INTC
PIT
BAM
SIU
Crossbar Switch (XBAR)
2 MB
Flash
(ECC)
ECSM
PBRIDGE B
6 x UART/LIN 2 x I²C
36 x ADC
2 x SPI
24 x eMIOS 6 x CAN
PBRIDGE A
2 x SPI
2 x I²C
80 KB
SRAM
(ECC)
ECSM
512 KB
SRAM
(ECC)
Standby RAM
ECSM
ADC
– Analog-to-digital converter
BAM
– Boot assist module
CAN
– Controller area network controller
ECC
– Error correction code
ECSM – Error correction status module
eMIOS – Timed input/output
eDMA – Enhanced direct memory access controller
FEC
– Fast ethernet controller
FlexRay™ – FlexRay bus controller
FMPLL – Frequency-modulated phase-locked loop
I²C
– Inter-integrated circuit controller
INTC
– Interrupt controller
JTAG
– Joint Test Action Group interface
MLB-DIM – Media Local Bus device interface module
NDI
– Nexus debug interface
PBRIDGE– Peripheral I/O bridge
PIT
– Periodic interrupt timer
RTC
– Real time clock
SIU
– System integration unit
SPI
– Serial peripheral interface controller
STM
– System timer module
SWT
– Software watchdog timer
UART/LIN – Universal asynchronous receiver/transmitter/
local interconnect network
VREG – Voltage regator
Figure 1. PXN20 Block Diagram
PXN20 Product Brief, Rev. 1
4
Freescale Semiconductor