TC1797 Datasheet, PDF (43/190 Pages) Infineon Technologies AG – 32-Bit Single-Chip Microcontroller

TC1797
Introduction
2.5.4 FlexRay™ Protocol Controller (E-Ray)
The E-Ray IP-module performs communication according to the FlexRay™ ¹⁾ protocol
specification v2.1. With maximum specified clock the bitrate can be programmed to
values up to 10 Mbit/s. Additional bus driver (BD) hardware is required for connection to
the physical layer.
2.5.4.1 E-Ray Kernel Description
Figure 2.5.4.1 shows a global view of the E-Ray interface.
f_SYS
f_{PL L _ER AY}
Clock
Control
f_{CLC_ ERAY}
f_{SC L K}
Address
Decoder
Channel A
RXDA
TXDA
TXENA
Channel B
ERAY
Module
( Kernel )
RXDB
TXDB
TXENB
Port
Control
Interrupt
Control
Stop
STPW _Watch
Trigger
MT ^Select
External
Request
Unit
External
f _MT
Clock
Output
Figure 8 General Block Diagram of the E-Ray Interface
eray _ov erv i ew.v s d
1) Infineon^®, Infineon Technologies^®, are trademarks of Infineon Technologies AG. FlexRay™ is a trademark of
FlexRay Consortium.
Data Sheet
39
V1.1, 2009-04