参数资料
型号: ADSP-21371BSWZ-2B
厂商: Analog Devices Inc
文件页数: 6/48页
文件大小: 0K
描述: IC DSP 32BIT 266MHZ 208-LQFP
产品培训模块: SHARC Processor Overview
标准包装: 1
系列: SHARC®
类型: 浮点
接口: DAI,DPI
时钟速率: 266MHz
非易失内存: ROM(512 kB)
芯片上RAM: 128kB
电压 - 输入/输出: 3.30V
电压 - 核心: 1.20V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 208-LQFP 裸露焊盘
供应商设备封装: 208-LQFP-EP(28x28)
包装: 托盘
ADSP-21371
DATA MODES
The upper 32 data pins of the external memory interface are
muxed (using bits in the SYSCTL register) to support the exter
nal memory interface data (input/output), the PDAP (input
only), and the FLAGS (input/output). Table 6 provides the pin
settings.
Table 6. Function of Data Pins
DATA PIN MODE
DATA31–16
DATA15–8
DATA7–0
000
EPDATA32–0
001
FLAGS/PWM15–01
EPDATA15–0
010
FLAGS/PWM15–01
FLAGS15–8
EPDATA7–0
011
FLAGS/PWM15–01
FLAGS15–0
100
PDAP (DATA + CTRL)
EPDATA7–0
101
PDAP (DATA + CTRL)
FLAGS7–0
110
Reserved
111
Three-state all pins
1 These signals can be FLAGS or PWM or a mix of both. However, they can be selected only in groups of four. Their function is determined by the control signals
FLAGS/PWM_SEL. For more information, see the ADSP-2136x SHARC Processor Hardware Reference for the ADSP-21367/8/9 Processors.
BOOT MODES
Table 7. Boot Mode Selection
BOOTCFG1–0
Booting Mode
00
SPI Slave Boot
01
SPI Master Boot
10
EPROM/FLASH Boot
CORE INSTRUCTION RATE TO CLKIN RATIO MODES
For details on processor timing, see Timing Specifications and
Table 8. Core Instruction Rate/ CLKIN Ratio Selection
CLKCFG1–0
Core to CLKIN Ratio
00
6:1
01
32:1
10
16:1
Rev. 0
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Page 14 of 48
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June 2007
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