MC9S12XDP512V2
Freescale Semiconductor
This application note describes the hardware, software, and timing considerations necessary for reliable communication between the MFR4200 controller and the MC9S12XDP512V2 (S12X).
Application NoteNxp
Interfacing the MC9S12XDP512V2 Microcontroller to the MFR4200 FlexRay Controller
Hardware and software guide for interfacing the NXP MC9S12XDP512V2 microcontroller to the MFR4200 FlexRay communication controller using the external bus interface (EBI).
Overview
This application note provides technical guidance for connecting the NXP (formerly Freescale) MC9S12XDP512V2 (S12X) 16-bit microcontroller to the MFR4200 standalone FlexRay communication controller. The document details hardware design using the S12X External Bus Interface (EBI) in Asynchronous Memory Interface (AMI) mode, which allows for direct connection without glue logic. It includes critical timing analysis for read/write cycles, specifically the requirement for stretch cycles when operating at 40 MHz. Software topics covered include EBI mode configuration, chip select setup, and memory mapping for the FlexRay controller.
Use Cases
- Developing automotive FlexRay nodes
- Interfacing 16-bit microcontrollers with standalone communication controllers
- Configuring NXP S12X external bus timing
- Hardware design for automotive electronic control units (ECUs)
Topics
FlexRay
MFR4200
MC9S12XDP512V2
S12X
External Bus Interface
EBI
Asynchronous Memory Interface
AMI
Stretch Cycles
Automotive Communication
Freescale Semiconductor
Referenced Parts
MFR4200
Freescale Semiconductor
reliable communication between the MFR4200 controller and the MC9S12XDP512V2 (S12X).
MC9S12XFR128
Freescale Semiconductor
the first FlexRay integrated IP on the MC9S12XFR128.
MFR4300
Freescale Semiconductor
The latest additions are the MFR4300 communication controller
| MC9S12XDP512V2 | Freescale Semiconductor | This application note describes the hardware, software, and timing considerations necessary for reliable communication between the MFR4200 controller and the MC9S12XDP512V2 (S12X). |
| MFR4200 | Freescale Semiconductor | reliable communication between the MFR4200 controller and the MC9S12XDP512V2 (S12X). |
| MC9S12XFR128 | Freescale Semiconductor | the first FlexRay integrated IP on the MC9S12XFR128. |
| MFR4300 | Freescale Semiconductor | The latest additions are the MFR4300 communication controller |