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ManualsBrandsNXP SEMICONDUCTORS ManualsMicrocontrollers, Microprocessors & QuartzesEmbedded microcontroller QFN 48 EP (7x7) 32-Bit 50 MHz I/O number 29

1071

45.3.24 UART 7816 Interrupt Enable Register (UARTx_IE7816)

The IE7816 register controls which flags result in an interrupt being issued. This register

is specific to 7816 functionality, the corresponding flags that drive the interrupts are not

asserted when 7816E is not set/enabled. However, these flags may remain set if they are

asserted while 7816E was set and not subsequently cleared. This register may be read or

written to at any time.

Addresses: UART0_IE7816 is 4006_A000h base + 19h offset = 4006_A019h

UART1_IE7816 is 4006_B000h base + 19h offset = 4006_B019h

UART2_IE7816 is 4006_C000h base + 19h offset = 4006_C019h

Bit 7 6 5 4 3 2 1 0

Read

WTE CWTE BWTE INITDE

GTVE TXTE RXTE

Write

Reset

0 0 0 0 0 0 0 0

UARTx_IE7816 field descriptions

Field Description

WTE

Wait Timer Interrupt Enable

0 The assertion of IS7816[WT] does not result in the generation of an interrupt.

1 The assertion of IS7816[WT] results in the generation of an interrupt.

CWTE

Character Wait Timer Interrupt Enable

0 The assertion of IS7816[CWT] does not result in the generation of an interrupt.

1 The assertion of IS7816[CWT] results in the generation of an interrupt.

BWTE

Block Wait Timer Interrupt Enable

0 The assertion of IS7816[BWT] does not result in the generation of an interrupt.

1 The assertion of IS7816[BWT] results in the generation of an interrupt.

INITDE

Initial Character Detected Interrupt Enable

0 The assertion of IS7816[INITD] does not result in the generation of an interrupt.

1 The assertion of IS7816[INITD] results in the generation of an interrupt.

Reserved

This read-only field is reserved and always has the value zero.

GTVE

Guard Timer Violated Interrupt Enable

0 The assertion of IS7816[GTV] does not result in the generation of an interrupt.

1 The assertion of IS7816[GTV] results in the generation of an interrupt.

TXTE

Transmit Threshold Exceeded Interrupt Enable

0 The assertion of IS7816[TXT] does not result in the generation of an interrupt.

1 The assertion of IS7816[TXT] results in the generation of an interrupt.

Table continues on the next page...

Memory map and registers

K20 Sub-Family Reference Manual, Rev. 2, Feb 2012

1078 Freescale Semiconductor, Inc.