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参数资料
| 型号： | EP9307-CR |
| 厂商： | Cirrus Logic, Inc. |
| 英文描述： | ARM9 SOC WITH ETHERNET USB DISPLAY AND TOUCHSCREEN |
| 中文描述： | ARM9的系统芯片以太网USB显示器和触摸屏 |
| 文件页数： | 10/48页 |
| 文件大小： | 716K |
| 代理商： | EP9307-CR |
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10
Copyright 2004 Cirrus Logic (All Rights Reserved)
DS667PP3
EP9307
ARM9 SOC with Ethernet, USB, Display and Touchscreen
Real-Time Clock with Software Trim
The software trim feature on the real time clock (RTC)
provides software controlled digital compensation of the
32.768 KHz crystal oscillator. This compensation is
accurate to ±1.24 sec/month.
PLL and Clocking
The Processor and the Peripheral Clocks operate from a
single 14.7456 MHz crystal.
The Real Time Clock operates from a 32.768 KHz crystal
oscillator.
Timers
The Watchdog Timer insures proper operation by
requiring periodic attention to prevent a reset-on-time-
out.
Two 16-bit timers operate as free running down-counters
or as periodic timers for fixed interval interrupts and have
a range of 0.03 ms to 4.27 seconds.
One 32-bit timer, plus a 6-bit prescale counter, has a
range of 0.03
μ
s to 73.3 hours.
One 40-bit debug timer, plus a 6-bit prescale counter, has
a range of 1.0
μ
s to 12.7 days.
Interrupt Controller
The interrupt controller allows up to 62 interrupts to
generate an Interrupt Request (IRQ) or Fast Interrupt
Request (FIQ) signal to the processor core. Thirty-two
hardware priority assignments are provided for assisting
IRQ vectoring, and two levels are provided for FIQ
vectoring. This allows time critical interrupts to be
processed in the shortest time possible. Internal
interrupts may be programmed as active high or active
low level sensitive inputs. GPIO pins programmed as
interrupts may be programmed as active high level
sensitive, active low level sensitive, rising edge triggered,
falling edge triggered, or combined rising/falling edge
triggered.
Supports 64 interrupts from a variety of sources (such
as UARTs, GPIO, and key matrix)
Routes interrupt sources to either the ARM920T’s
IRQ or FIQ (Fast IRQ) inputs
Three dedicated off-chip interrupt lines operate as
active high level sensitive interrupts
Any of the 16 GPIO lines maybe configured to
generate interrupts
Software supported priority mask for all FIQs and
IRQs
Dual LED Drivers
Two pins are assigned specifically to drive external
LEDs.
General Purpose Input/Output (GPIO)
The 14 EGPIO pins may each be configured individually
as an output, an input, or an interrupt input.
There are 22 pins that may alternatively be used as input,
output, or open-drain pins, but do not support interrupts.
These pins are:
Key Matrix ROW[7:0], COL[7:0]
Ethernet MDIO
Both LED Outputs
EEPROM Clock and Data
GGPIO[2]
HGPIO[7:2]
6 pins may alternatively be used as inputs only:
CTSn, DSRn/DCDn
4 Interrupt Lines
2 pins may alternatively be used as outputs only:
RTSn
ARSTn
Table K. Real-Time Clock with Pin Assignments
Pin Mnemonic
Pin Name - Description
RTCXTALI
Real-Time Clock Oscillator Input
RTCXTALO
Real-Time Clock Oscillator Output
Table L. PLL and Clocking Pin Assignments
Pin Mnemonic
Pin Name - Description
XTALI
Main Oscillator Input
XTALO
Main Oscillator Output
VDD_PLL
Main Oscillator Power
GND_PLL
Main Oscillator Ground
Table M. Interrupt Controller Pin Assignment
Pin Mnemonic
Pin Name - Description
INT[2:0]
External Interrupts 2, 1, 0
Table N. Dual LED Pin Assignments
Pin Mnemonic
Pin Name -
Description
Alternative Usage
GRLED
Green LED
General Purpose I/O
REDLED
Red LED
General Purpose I/O
相关PDF资料 |
PDF描述 |
|---|---|
| EP9307-CRZ | ARM9 SOC WITH ETHERNET USB DISPLAY AND TOUCHSCREEN |
| EP9307-ERZ | ARM9 SOC WITH ETHERNET USB DISPLAY AND TOUCHSCREEN |
| EP9307-IR | ARM9 SOC WITH ETHERNET USB DISPLAY AND TOUCHSCREEN |
| EP9307-IRZ | 432498925 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| EP9307-CR/E1 | 制造商:Cirrus Logic 功能描述: |
| EP9307-CRR | 功能描述:微处理器 - MPU IC Universal Platfrm ARM9 SOC Prcessor RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324 |
| EP9307CRZ | 制造商:Cirrus Logic 功能描述: |
| EP9307-CRZ | 功能描述:微处理器 - MPU IC Universl Pltform ARM9 SOC Prcessor RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324 |
| EP9307-CRZR | 功能描述:微处理器 - MPU IC Universal Platfrm ARM9 SOC Prcessor RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324 |
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