MAC7200 datasheet(745/976 Pages) FREESCALE

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Functional Description

MAC7200 Microcontroller Family Reference Manual, Rev. 2

Freescale Semiconductor

667

enter Doze mode, as soon as the current byte is transmitted or received, respectively. In LIN mode,

it will enter Doze mode as soon as the current RX or TX frame has completed.

If the eSCI is not disabled in Doze mode, an eSCI interrupt request can be used to bring the system out of

Doze mode.

31.10.8.3 Module Disable

The Module Disable Bit (MDIS) in the SCI Control Register 3 can be used to turn off the eSCI. This will

prevent the eSCI core to be clocked, and thus save power. By default the eSCI is disabled, so the first step

for using the eSCI is to enable it by setting the MDIS Bit to 0.

31.10.9 Interrupt Operation

31.10.9.1 Interrupt Flags and Masks

Table 31-27 lists the interrupt sources that can generate an eSCI interrupt to the CPU.

Table 31-27. eSCI Interrupt Flags and Mask Bits

Interrupt

Source

Flag

Local

Enable

Transmitter

TDRE

TIE

Transmitter

TCIE

Receiver

RDRF

RIE

Receiver

IDLE

ILIE

Receiver

PFIE

Receiver

FEIE

Receiver

NFIE

Receiver

ORIE

LIN

BERR

IEBERR

LIN

RXRDY

RXIE

LIN

TXRDY

TXIE

LIN

LWAKE

WUIE

LIN

STO

STIE

LIN

PBERR

PBIE

LIN

CERR

CIE

LIN

CKERR

CKIE

LIN

FRC

FCIE

LIN

OVFL

OFIE

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