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參數(shù)資料
型號(hào)： MC9S12DJ128BVFU
廠商： MOTOROLA INC
元件分類： 微控制器/微處理器
英文描述： MC9S12DT128B
中文描述： 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP80
封裝： 14 X 14 MM, 2.20 MM HEIGHT, 0.65 MM PITCH, QFP-80
文件頁數(shù)： 67/124頁
文件大小： 577K
代理商： MC9S12DJ128BVFU
MC9S12DT128B Device User Guide — V01.07
67
Section 4 Modes of Operation
4.1 Overview
Eight possible modes determine the operating configuration of the MC9S12DT128B. Each mode has an
associated default memory map and external bus configuration controlled by a further pin.
Three low power modes exist for the device.
4.2 Chip Configuration Summary
TheoperatingmodeoutofresetisdeterminedbythestatesoftheMODC,MODB,andMODApinsduring
reset(
Table 4-1
).TheMODC,MODB,andMODAbitsintheMODEregistershowthecurrentoperating
modeandprovidelimitedmodeswitchingduringoperation.ThestatesoftheMODC,MODB,andMODA
pinsarelatchedintothesebitsontherisingedgeoftheresetsignal.TheROMCTLsignalallowsthesetting
of the ROMON bit in the MISC register thus controlling whether the internal Flash is visible in the
memory map. ROMON = 1 mean the Flash is visible in the memory map. The state of the ROMCTL pin
is latched into the ROMON bit in the MISC register on the rising edge of the reset signal.
For further explanation on the modes refer to the Core User Guide.
Table 4-1 Mode Selection
BKGD =
MODC
PE6 =
MODB
PE5 =
MODA
PK7 =
ROMCTL
ROMON
Bit
Mode Description
0
0
0
X
1
Special Single Chip, BDM allowed and ACTIVE. BDM is
allowed in all other modes but a serial command is
required to make BDM active.
Emulation Expanded Narrow, BDM allowed
Special Test (Expanded Wide), BDM allowed
Emulation Expanded Wide, BDM allowed
Normal Single Chip, BDM allowed
0
0
0
1
0
1
1
0
1
0
1
0
X
X
X
X
0
1
0
0
0
1
0
1
1
0
1
Normal Expanded Narrow, BDM allowed
1
1
0
X
1
Special Peripheral; BDM allowed but bus operations
would cause bus conflicts (must not be used)
1
1
1
0
1
0
1
Normal Expanded Wide, BDM allowed
Table 4-2 Clock Selection Based on PE7
PE7 = XCLKS
1
0
Description
Colpitts Oscillator selected
Pierce Oscillator/external clock selected
相關(guān)PDF資料
PDF描述
MC9S12DJ128BVPV MC9S12DT128B
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MC9S12DT128BCFU MC9S12DT128B
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC9S12DJ128BVPV 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Freescale Semiconductor 功能描述:
MC9S12DJ128CFU 制造商:Rochester Electronics LLC 功能描述:128K FLASH HCS12 MCU - Bulk
MC9S12DJ128CFUE 功能描述:16位微控制器 - MCU 128K FLASH HCS12 RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時(shí)鐘頻率:24 MHz 程序存儲(chǔ)器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT
MC9S12DJ128CPV 制造商:Rochester Electronics LLC 功能描述:128K FLASH HCS12 MCU - Bulk 制造商:Motorola Inc 功能描述: 制造商:MOTOROLA 功能描述:
MC9S12DJ128CPVE 功能描述:16位微控制器 - MCU 128K FLASH HCS12 MCU RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時(shí)鐘頻率:24 MHz 程序存儲(chǔ)器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT
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