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PXN20RM Datasheet, PDF (45/1376 Pages) Freescale Semiconductor, Inc – PXN20 Microcontroller | |||
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Similarly, the e200z0 core is also referred to as the Z0.
Introduction
1.3 PXN20 Block Diagram
Figure 1-1 shows a top-level block diagram of the PXN20.
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 FlexRayâ¢
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
â Analog-to-digital converter
BAM
â Boot assist module
CAN
â Controller area network controller
ECC
â Error correction code
ECSM â Error correction status module
eMIOS â Timed input/output
eDMA â Enhanced direct memory access controller
FEC
â Fast ethernet controller
FlexRay⢠â FlexRay bus controller
FMPLL â Frequency-modulated phase-locked loop
I2C
â Inter-integrated circuit controller
INTC
â Interrupt controller
JTAG
â Joint Test Action Group interface
MLB-DIM â Media Local Bus device interface module
NDI
â Nexus debug interface
PBRIDGEâ Peripheral I/O bridge
PIT
â Periodic interrupt timer
RTC
â Real time clock
SIU
â System integration unit
SPI
â Serial peripheral interface controller
STM
â System timer module
SWT
â Software watchdog timer
UART/LIN â Universal asynchronous receiver/transmitter/
local interconnect network
VREG â Voltage regator
Figure 1-1. PXN20 Block Diagram
PXN20 Microcontroller Reference Manual, Rev. 1
Freescale Semiconductor
1-3
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