NXP Semiconductors MPC5566 - Introduction

MPC5566 Microcontroller Reference Manual, Rev. 2
Freescale Semiconductor 21-1
Chapter 21
Enhanced Serial Communication Interface (eSCI)
21.1 Introduction
This section gives an overview of the enhanced serial communication interface (eSCI) module, and
presents a block diagram, its features and operating modes.
21.1.1 Block Diagram
Figure 21-1. eSCI Block Diagram
IRQ
generation
Receive & wake-up control
Receive shift register
eSCI data register
LIN receive register
LIN transmit register
DMA
interface
TX DMA
RX DMA
RDRF/
OR IRQ
ORING IRQ to CPU
Data format control÷16
BAUD
generator
Transmit control
Transmit shift register
eSCI data register
IDLE
IRQ
IRQ
generation
TC IRQ
TDRE
IRQ
TX data out
LIN FSM
1
LIN error detection
RXRDY
TXRDY
LWAKE
FRC
PBERR
BERR
CERR
CKERR
STO
OVFL
LIN error flags
LIN status flags
LIN Hardware
Peripheral
bus clock
RX data In
1
Finite state
1
machine