參數(shù)資料
型號(hào)： MC9S12A32
廠商： 飛思卡爾半導(dǎo)體(中國)有限公司
英文描述： 16 bit Microcontroller Unit (MCU)(16位MCU)
中文描述： 16位微控制器單元（MCU）（16位微控制器）
文件頁數(shù)： 69/128頁
文件大小： 1835K
代理商： MC9S12A32
MC9S12DJ64 Device User Guide — V01.20
69
Section 4 Modes of Operation
4.1 Overview
Eight possible modes determine the operating configuration of the MC9S12DJ64 and MC9S12D32. Each
mode has an associated default memory map and external bus configuration.
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 HCS12 Multiplexed External Bus Interface Block 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.
0
0
1
0
1
X
0
1
X
0
1
1
0
0
1
0
1
0
1
Emulation Expanded Narrow, BDM allowed
0
1
0
Special Test (Expanded Wide), BDM allowed
0
1
1
Emulation Expanded Wide, BDM allowed
1
0
0
Normal Single Chip, BDM allowed
1
0
1
Normal Expanded Narrow, BDM allowed
1
1
0
X
1
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
Description
Colpitts Oscillator selected
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MC9S12A32CFUE 功能描述:16位微控制器 - MCU 32K 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
MC9S12A32CFUER 功能描述:16位微控制器 - MCU 32K 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
MC9S12A512CPVE 功能描述:16位微控制器 - MCU WHALESHARK MICROCO EPP 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
MC9S12A64CFU 制造商:Freescale Semiconductor 功能描述:16 bit Microcontroller Unit (MCU)
MC9S12A64CFUE 功能描述:16位微控制器 - MCU 16B WFLASH 2XATD SPI 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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