參數(shù)資料
型號(hào): DSP56854E
廠商: 飛思卡爾半導(dǎo)體(中國)有限公司
英文描述: 16-bit Digital Signal Controllers
中文描述: 16位數(shù)字信號(hào)控制器
文件頁數(shù): 22/60頁
文件大小: 836K
代理商: DSP56854E
56854 Technical Data, Rev. 6
22
Freescale Semiconductor
50
TRST
Input
Test Reset (TRST)
—As an input, a low signal on this pin provides a
reset signal to the JTAG TAP controller. To ensure complete
hardware reset, TRST should be asserted whenever RESET is
asserted. The only exception occurs in a debugging environment,
since the Enhanced OnCE/JTAG module is under the control of the
debugger. In this case it is not necessary to assert TRST when
asserting RESET . Outside of a debugging environment RESET
should be permanently asserted by grounding the signal, thus
disabling the Enhanced OnCE/JTAG module on the device.
Note:
design is to be used in a debugging environment, TRST may be tied to V
SS
through a 1K resistor.
For normal operation, connect TRST directly to V
SS
. If the
49
DE
Input
/Output
Debug Event (DE)
—This is an open-drain, bidirectional, active low
signal. As an input, it is a means of entering debug mode of
operation from an external command controller. As an output, it is a
means of acknowledging that the chip has entered debug mode.
This pin is connected internally to a weak pull-up resistor.
Table 3-1. 56854 Signal and Package Information for the 128-pin LQFP (Continued)
Pin No.
Signal Name
Type
Description
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DSP56854FG120 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC 120Mhz/120MIPS RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
DSP56854FGE 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC 120Mhz/120MIPS RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
DSP56854PB 制造商:未知廠家 制造商全稱:未知廠家 功能描述:56854 Digital Signal Processor Product Brief
DSP56855 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Digitial Signal Controller
DSP56855BU120 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC 120Mhz/120MIPS RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT