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| 型号： | EP9302-IQ |
| 厂商： | Cirrus Logic, Inc. |
| 英文描述： | High-speed ARM9 System-on-chip Processor with MaverickCrunch |
| 中文描述： | 高速ARM9的系统级芯片处理器MaverickCrunch |
| 文件页数： | 9/42页 |
| 文件大小： | 302K |
| 代理商： | EP9302-IQ |
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DS653PP3
Copyright 2005 Cirrus Logic (All Rights Reserved)
9
EP9302
High-speed ARM9 System-on-chip Processor with MaverickCrunch
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
external oscillator.
Timers
The Watchdog Timer ensures 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 6-bit prescale counter, has a
range of 1.0
μ
s to 12.7 days.
Interrupt Controller
The interrupt controller allows up to 54 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 54 interrupts from a variety of sources (such
as UARTs, GPIO and ADC)
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 19 GPIO lines maybe configured to
generate interrupts
Software supported priority mask for all FIQs and
IRQs
Note:
INT[2] is not bonded out.
Dual LED Drivers
Two pins are assigned specifically to drive external
LEDs.
General Purpose Input/Output (GPIO)
The 16 EGPIO and the 3 FGPIO pins may each be
configured individually as an output, an input, or an
interrupt input.
There are 10 pins that may alternatively be used as input,
output, or open-drain pins, but do not support interrupts.
These pins are:
Ethernet MDIO
Both LED Outputs
EEPROM Clock and Data
HGPIO[5:2]
CGPIO[0]
6 pins may alternatively be used as inputs only:
CTSn, DSRn / DCDn
3 Interrupt Lines
2 pins may alternatively be used as outputs only:
RTSn
ARSTn
Table J. 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 K. External Interrupt Controller Pin Assignment
Pin Mnemonic
Pin Name - Description
INT[3] and INT[1:0]
External Interrupts 2, 1, 0
Table L. 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
Table M. General Purpose Input/Output Pin Assignment
Pin Mnemonic
Pin Name - Description
EGPIO[15:0]
Expanded General Purpose Input / Output
Pins with Interrupts
FGPIO[3:1]
Expanded General Purpose Input / Output
Pins with Interrupts
相关PDF资料 |
PDF描述 |
|---|---|
| EP9302-IQZ | High-speed ARM9 System-on-chip Processor with MaverickCrunch |
| EP9307 | ARM9 SOC WITH ETHERNET USB DISPLAY AND TOUCHSCREEN |
| EP9307-CR | ARM9 SOC WITH ETHERNET USB DISPLAY AND TOUCHSCREEN |
| EP9307-CRZ | ARM9 SOC WITH ETHERNET USB DISPLAY AND TOUCHSCREEN |
| EP9307-ERZ | ARM9 SOC WITH ETHERNET USB DISPLAY AND TOUCHSCREEN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| EP9302-IQZ | 功能描述:微处理器 - MPU IC Hi-Perform ARM9 SOC Processor 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 |
| EP9303 | 制造商:PCA 制造商全称:PCA ELECTRONICS INC. 功能描述:14 Pin DIP 5 Tap Low-Profile TTL Compatible Active Delay Lines |
| EP9303-CQZ | 制造商:Cirrus Logic 功能描述: |
| EP9304 | 制造商:PCA 制造商全称:PCA ELECTRONICS INC. 功能描述:14 Pin DIP 5 Tap Low-Profile TTL Compatible Active Delay Lines |
| EP9305 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:DELAY LINE|FIXED TAPS|1-LINE|5-TAP|HYBRID|DIP|14PIN|PLASTIC |
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