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PPXD2020VMG116R Datasheet(PDF) 16 Page - Freescale Semiconductor, Inc

Part No. PPXD2020VMG116R
Description  32-bit Power Architecture® Dual Core Microcontrollers for Industrial Networking
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

PPXD2020VMG116R Datasheet(HTML) 16 Page - Freescale Semiconductor, Inc

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PXN20 Product Brief, Rev. 1
Features
Freescale Semiconductor
16
Each eDMA channel can optionally send an interrupt request to the CPU on completion of a single
value or block transfer
DMA transfers possible between system memories, SPIs, I2C, ADC, UART, eMIOS200 and
General Purpose I/Os
Programmable DMA channel mux allows assignment of any DMA source to any available DMA
channel with up to a total of 64 potential request sources.
2.6.17
Crossbar Switch (XBAR)
The Crossbar Switch allows concurrent accesses between masters and slaves, and provides these features:
Up to 6 master ports
— Masters: Z6 CPU, Z0 CPU, eDMA, FlexRay, FEC, MLB
Multiple bus slaves to enable access to flash, SRAM ports and peripherals
Multiple AIPS bridges to support connection to all peripheral modules
Crossbar supports consecutive transfers from master to available slaves
32-bit internal address bus, 32-bit internal data bus
User configurable priority arbitration based for masters
Temporary dynamic priority elevation for IOP and DMA
2.6.18
Memory Protection Unit (MPU)
The MPU provides the following features:
Supports up to 16 region descriptors for per-master protection
Start and end address defined with 32-byte granularity
Overlapping regions supported
Protection attributes can optionally include process ID
Protection offered for 4 concurrent read ports
Read and write attributes for all masters
Execute and supervisor/user mode attributes for processor masters
2.6.19
Interrupt Controller (INTC)
The PXN20 implements an interrupt controller that features the following:
Unique 9-bit vector for each of the 316 separate interrupt sources (22 reserved)
8 software triggerable interrupt sources
16 priority levels with fixed hardware arbitration within priority levels for each interrupt source
Ability to modify the ISR or task priority.
— Modifying the priority can be used to implement the priority ceiling protocol for accessing
shared resources.
External high priority interrupt directly accessing the main core critical interrupt mechanism


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