CY8C53_11 datasheet(41/106 Pages) CYPRESS

41 / 106 page

PRELIMINARY

PSoC® 5: CY8C53 Family Datasheet

Document Number: 001-66237 Rev. *A

Page 41 of 106

Figure 7-17. I/O Pin Output Enable Connectivity

7.5 CAN

The CAN peripheral is a fully functional Controller Area Network

(CAN) supporting communication baud rates up to 1 Mbps. The

CAN controller implements the CAN2.0A and CAN2.0B

specifications as defined in the Bosch specification and

conforms to the ISO-11898-1 standard. The CAN protocol was

originally designed for automotive applications with a focus on a

high level of fault detection. This ensures high communication

reliability at a low cost. Because of its success in automotive

applications, CAN is used as a standard communication protocol

for motion oriented machine control networks (CANOpen) and

factory automation applications (DeviceNet). The CAN controller

features allow the efficient implementation of higher level

protocols

without

affecting

the

performance

the

microcontroller CPU. Full configuration support is provided in

PSoC Creator.

Figure 7-18. CAN Bus System Implementation

7.5.1 CAN Features

CAN2.0A/B protocol implementation - ISO 11898 compliant

Standard and extended frames with up to 8 bytes of data per

frame

Message filter capabilities

Remote Transmission Request (RTR) support

Programmable bit rate up to 1 Mbps

Listen Only mode

SW readable error counter and indicator

Sleep mode: Wake the device from sleep with activity on the

Rx pin

Supports two or three wire interface to external transceiver (Tx,

Rx, and Enable). The three-wire interface is compatible with

the Philips PHY; the PHY is not included on-chip. The three

wires can be routed to any I/O

Enhanced interrupt controller

CAN receive and transmit buffers status

CAN controller error status including BusOff

Receive path

16 receive buffers each with its own message filter

Enhanced hardware message filter implementation that

covers the ID, IDE and RTR

DeviceNet addressing support

Multiple receive buffers linkable to build a larger receive

message array

Automatic transmission request (RTR) response handler

Lost received message notification

Port i

PIN 0

PIN1

PIN2

PIN3

PIN4

PIN5

PIN6

PIN7

4 IO Control Signal Connections from

UDB Array Digital System Interface

CAN Node 1

PSoC

CAN Controller

CAN Transceiver

Tx Rx

CAN Node 2

CAN Node n

CAN_H

CAN_L

CAN_H

CAN_L

CAN_H

CAN_L

CAN

Drivers

CAN Bus

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