Instrukcja obsługi Microchip ATA6570

Microchip Niesklasyfikowane ATA6570

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ATAB657XA Development Board User's Guide
Introduction
The development board ATAB657XA is a hardware platform to evaluate the new ATA657X CAN device
family and it enables users to rapidly prototype and test new CAN designs with the ATA657X ICs.
The ATA657X device family includes three high-speed controller area network (CAN) transceivers, which
interface a CAN protocol controller and the physical two-wire CAN bus designed for high-speed CAN
applications (up to 5 Mbit/s) in the automotive environment. Two of them also support partial networking.
All offer improved electromagnetic compatibility (EMC) and electrostatic discharge (ESD) performance
and very low-power consumption in Standby and Sleep modes:
• Besides local wake-up via WAKE and remote wake-up pattern in accordance with ISO 11898-5, the
ATA6570 is fully compliant to the ISO 11898-6 supporting CAN partial networking. The ATA6570
additionally supports a CAN-FD device and can be easily configured via the SPI as Non-FD
(meaning classical CAN 2.0), CAN FD silent, CAN FD passive or as CAN FD active device, in order
to fulfill the corresponding application requirements. The VIO pin allows the automatic adjustment
of the I/O levels to the I/O level of the connected microcontroller.
• The ATA6571 has ideal passive behavior to the CAN bus when the supply voltage is off.
Microcontrollers with supply voltages from 3V to 5V can be directly interfaced via the VIO pin. Its
advanced low-power management with local and remote wake-up support makes it possible to
achieve very low current consumption in Standby and Sleep mode, even when the internal VIO and
VCC supplies are switched off. Diagnostic and protection functions, including bus line short-circuit
detection and battery connection detection, are also part of the ATA6571's features.
© 2018 Microchip Technology Inc. User Guide DS50002672B-page 1
• The ATA6572 is a CAN Partial Networking transceiver and is very similar to the ATA6570. The only
difference is that instead of the WAKE pin, it has a dedicated reset pin indicating a watchdog failure or
an undervoltage event.
Various operating modes together with the dedicated fail-safe features make the ATA657X an excellent
choice for all types of high-speed CAN networks, especially in nodes requiring low-power mode with local
wake-up capability or via the CAN bus. With the INH output they have the capability to power down the
complete CAN node.
The ATA657X devices are available in a SOIC14 package as well as in a VDFN14 package, for space-saving
application. The development board ATAB657XA supports only SOIC14 packages. However, an adaptor
board can be plugged in using the adaptor board-header, if a device in a VDFN package is used (the adaptor
board is within the not scope of supply and services of this demo kit/board).
Figure 1. SOIC14 Pinning
SOIC14
1
2
3
4ATA6570
5
6
7
TXD
GND
VCC
RXD
VIO
INH
CANH
CANL
VS
14
13
12
11
10
9
8
1
2
3
4ATA6571
5
6
7
TXD
GND
VCC
RXD
VIO
INH
CANH
CANL
VS
14
13
12
11
10
9
8
1
2
3
4ATA6572
5
6
7
TXD
GND
VCC
RXD
VIO
INH
CANH
CANL
VS
14
13
12
11
10
9
8
WAKE
NCS
MOSI
SCK
MISO MISO
SCK
NRES
MOSI
NCS
NSTBY
NC
WAKE
NERR
EN
SOIC14 SOIC14
Development Board Features
The development board for the ATA657X ICs supports the following features:
• All components necessary to put the ATA6570, ATA6571 or ATA6572 into operation are included
• Placeholders for some optional components for extended functions
• All pins are easily accessible
• Switching into Normal, Standby or Sleep mode via two jumpers (ATA6571)
• Push button included for creating a local wake-up after entering Sleep mode
• LEDs for operation indication
• Ground coulter clip for easy probe connection while measuring with oscilloscope
• Connectors for direct plug-in with the C21-XPRO Xplained board (only ATA6570 and ATA6572 with
SPI)
WHAT DOES THE ATAB657XA DEVELOPMENT BOARD KIT CONTAIN?
This ATAB657XA Development Board kit includes:
• ATAB657XA Development Board (ADM00870)
• Important Information Sheet
© 2018 Microchip Technology Inc. User Guide DS50002672B-page 2
Table of Contents
Introduction......................................................................................................................1
Development Board Features..........................................................................................2
WHAT DOES THE ATAB657XA DEVELOPMENT BOARD KIT CONTAIN?...................2
1. Hardware Description................................................................................................ 6
1.1. Power Supply............................................................................................................................... 7
1.2. Headers, Connectors and Jumpers .............................................................................................7
1.3. Mechanical Buttons......................................................................................................................8
1.4. LEDs.............................................................................................................................................8
2. Crypto Authentication Device.................................................................................. 10
3. Mode Control........................................................................................................... 11
4. Graphical User Interface (GUI)................................................................................13
4.1. Features..................................................................................................................................... 13
4.2. Maintab.......................................................................................................................................14
4.3. Registers.................................................................................................................................... 17
4.4. SPI..............................................................................................................................................17
4.5. CAN............................................................................................................................................18
5. Test Setups and Measurements ............................................................................. 19
5.1. Various Measurements...............................................................................................................19
5.2. Measurement Hints.................................................................................................................... 21
6. Schematics and Layout........................................................................................... 23
6.1. ATAB657XA Board Schematic................................................................................................... 23
6.2. Board - Top Silk..........................................................................................................................25
6.3. Board - Top Copper and Silk...................................................................................................... 26
6.4. Board - Top Copper.................................................................................................................... 27
6.5. Board - Bottom Copper.............................................................................................................. 28
7. ATAB657XA Board BOM......................................................................................... 29
8. Register Description................................................................................................ 34
8.1. Device Mode Control Register (Address 0x01)..........................................................................35
8.2. Device Mode Status Register (Address 0x03)........................................................................... 36
8.3. CAN Transceiver Control Register (Address 0x20)....................................................................37
8.4. CAN Transceiver Status Register (Address 0x22)..................................................................... 38
8.5. Bus Failure Indication Register (Address 0x33).........................................................................39
8.6. Transceiver Event Status Register 2 (Address 0x35).................................................................40
8.7. Data Rate Configuration Register (Address 0x26).....................................................................41
8.8. CAN ID Register 0 (Address 0x27)............................................................................................ 42
© 2018 Microchip Technology Inc. User Guide DS50002672B-page 3

Specyfikacje produktu

Marka: Microchip
Kategoria: Niesklasyfikowane
Model: ATA6570

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