Cirrus Logic EP93xx User Manual

Page 169

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DS785UM1

6-7

Copyright 2007 Cirrus Logic

Vectored Interrupt Controller

EP93xx User’s Guide

6

6

6

CLK1HZ

1 Hz clock interrupt. See

Chapter 20

,

"Real Time Clock

With Software Trim"

.

V_SYNC

Vertical or Composite Sync/Frame Pulse Interrupt. See

Chapter 7

,

"Raster Engine With Analog/LCD Integrated

Timing and Interface"

.

INT_VIDEO_FIFO Video FIFO Interrupt. See

Chapter 7

,

"Raster Engine With

Analog/LCD Integrated Timing and Interface"

INT_SSP1RX

SSP Receive Interrupt. See

Chapter 23

"Synchronous

Serial Port"

.

INT_SSP1TX

SSP Transmit Interrupt. See

Chapter 23

"Synchronous

Serial Port"

.

TC3UI

Timer Counter 3 Underflow Interrupt. This interrupt
becomes active on the next falling edge of the timer
counter 3 clock after the timer counter has under flowed
(reached zero). The interrupt is cleared by writing any
value to the

“Timer3Clear”

register. See

Chapter 18

,

"Timers"

.

INT_UART1

UART 1 General Interrupt. This interrupt is active if any
UART1 interrupt is active. Interrupt service routines will
need to read the relevant status bits within UART1 to
determine the source of the interrupt. All these sources
are individually maskable within UART1. See

Chapter 15

,

“UART1”.

SSPINTR

Synchronous Serial Port (SSP) Interrupt. See

Chapter 23

"Synchronous Serial Port"

.

INT_UART2

UART 2 General Interrupt. This interrupt is active if any
UART2 interrupt is active. Interrupt service routines will
need to read the relevant status bits within UART2 to
determine the source of the interrupt. All these sources
are individually maskable within UART2. See

Chapter 15

,

"UART2"

.

INT_UART3

UART 3 General Interrupt. This interrupt is active if any
UART3 interrupt is active. Interrupt service routines will
need to read the relevant status bits within UART3 to
determine the source of the interrupt. All these sources
are individually maskable within UART3. See

Chapter 16

,

"UART3 With HDLC Encoder"

.

USHINTR

USB Host Interrupt. See

Chapter 11

, “USB Host

Controller”.

INT_PME

PME interrupt. See

Chapter 23

"Synchronous Serial

Port"

.

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