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參數資料
型號: MC68332VFC20
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 32-Bit Modular Microcontroller
中文描述: 32-BIT, 20 MHz, MICROCONTROLLER, PQFP132
封裝: PLASTIC, QFP-132
文件頁數: 20/88頁
文件大?。?/td> 446K
代理商: MC68332VFC20
MOTOROLA
20
MC68332
MC68332TS/D
3.2.2 System Protection Control Register
The system protection control register controls system monitor functions, software watchdog clock
prescaling, and bus monitor timing. This register can be written only once following power-on or reset,
but can be read at any time.
SWE — Software Watchdog Enable
0 = Software watchdog disabled
1 = Software watchdog enabled
SWP — Software Watchdog Prescale
This bit controls the value of the software watchdog prescaler.
0 = Software watchdog clock not prescaled
1 = Software watchdog clock prescaled by 512
SWT[1:0] — Software Watchdog Timing
This field selects the divide ratio used to establish software watchdog time-out period. The following ta-
ble gives the ratio for each combination of SWP and SWT bits.
HME — Halt Monitor Enable
0 = Disable halt monitor function
1 = Enable halt monitor function
BME — Bus Monitor External Enable
0 = Disable bus monitor function for an internal to external bus cycle.
1 = Enable bus monitor function for an internal to external bus cycle.
BMT[1:0] — Bus Monitor Timing
This field selects a bus monitor time-out period as shown in the following table.
SYPCR
—System Protection Control Register
$YFFA21
15
8
7
6
5
4
3
2
1
0
NOT USED
SWE
SWP
SWT
HME
BME
BMT
RESET:
1
MODCLK
0
0
0
0
0
0
SWP
0
SWT
00
Ratio
2
9
0
01
2
11
0
10
2
13
0
11
2
15
1
00
2
18
1
01
2
20
1
10
2
22
1
11
2
24
BMT
00
01
10
11
Bus Monitor Time-out Period
64 System Clocks
32 System Clocks
16 System Clocks
8 System Clocks
相關PDF資料
PDF描述
MC68340V 32-Bit Microprocessor(32位微處理器)
MC68341FT16 Integrated Processor Users Manual
MC68341FT16V Integrated Processor Users Manual
MC68341FT25 Integrated Processor Users Manual
MC68341UMAD Integrated Processor Users Manual
相關代理商/技術參數
參數描述
MC68332VFV16 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:32-Bit Modular Microcontroller
MC68332VFV20 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:32-Bit Modular Microcontroller
MC68334 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Technical Supplement
MC68334GCEH16 功能描述:IC MCU 16MHZ 2K RAM 132-PQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:M683xx 標準包裝:1 系列:87C 核心處理器:MCS 51 芯體尺寸:8-位 速度:16MHz 連通性:SIO 外圍設備:- 輸入/輸出數:32 程序存儲器容量:8KB(8K x 8) 程序存儲器類型:OTP EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4 V ~ 6 V 數據轉換器:- 振蕩器型:外部 工作溫度:0°C ~ 70°C 封裝/外殼:44-DIP 包裝:管件 其它名稱:864285
MC68334GCEH16 制造商:Freescale Semiconductor 功能描述:Microcontroller
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