XC2288H_11 Datasheet, PDF (80/151 Pages) Infineon Technologies AG – 16/32-Bit Single-Chip Microcontroller with 32-Bit Performance

XC2288H, XC2289H
XC2000 Family / High Line
Functional Description
3.15
FlexRay™ Protocol Controller (E-Ray)
The E-Ray 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.
Figure 13 shows a global view of the E-Ray interface.
f_SYS
f_{PLL_ER AY}
Address
Decoder
fCLC_ER AY
fSC L K
Channel A
RXDA
TXDA
TXENA
ERAY ^{Channel B}
Module
(Kernel)
RXDB
TXDB
TXENB
Port
Control
Interrupt
Control
Stop
STPW _Watch
Trigger
Select
MT
External
Request
Unit
External
f MT
Clock
Output
eray_overview.vsd
Figure 13 General Block Diagram of the E-Ray Interface
The E-Ray module communicates with the external world via three I/O lines each
channel. The RXDAx and RXDBx lines are the receive data input signals, TXDA and
TXDB lines are the transmit output signals, and TXENA and TXENB the transmit enable
signals.
1) FlexRay™ is a trademark of the FlexRay Consortium.
Data Sheet
80
V1.3, 2011-07