參數(shù)資料
型號： PIC14000
廠商： Microchip Technology Inc.
英文描述： CTV 22C 22#22D SKT RECP
中文描述： 28引腳可編程混合信號控制器
文件頁數(shù)： 75/152頁
文件大?。?/td> 953K
代理商： PIC14000
1996 Microchip Technology Inc.
Preliminary
DS40122B-page 75
PIC14000
10.0
SPECIAL FEATURES OF THE
CPU
What sets apart a microcontroller from other
processors are special circuits to deal with the needs of
real time applications. The PIC14000 has a host of
such features intended to maximize system reliability,
minimize cost through elimination of external
components, provide power saving operating modes
and offer code protection. These are:
OSC (oscillator) selection
- Crystal/resonator
- Internal oscillator
Reset options
- Power-on Reset (POR)
- Power-up Timer (PWRT)
- Oscillator Start-up Timer (OST)
Interrupts
Watchdog Timer (WDT)
SLEEP and HIBERNATE modes
Code protection
In-circuit serial programming
These features will be described in the following
sections.
10.1
The configuration bits can be programmed (read as '0')
or left unprogrammed (read as '1') to select various
device configurations. These bits are mapped in pro-
gram memory location 2007h.
The user will note that address 2007h is beyond the
user program memory space. In fact, it belongs to the
special test/configuration memory space (2000h -
3FFFh), which can be accessed only during program-
ming.
Configuration Bits
FIGURE 10-1: CONFIGURATION WORD
2007h
Bit 13-8
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
BITS
r
CPC
r
CPP1 CPP0
PWRTE
WDTE
r
FOSC
Read/Write
R/W
R/W
Reserved
R/W
R/W
R/W
R/W
Reserved
R/W
Erased value
1
1
1
1
1
1
1
1
1
Bit
Name
Function
B13-B8
r
Reserved
Calibration Space Code Protection Bit
1 = Calibration space is readable and programmable
0 = Calibration space is write protected
Reserved
Program Space Code Protection Bit
1 = Program space is readable and programmable
0 = Program space is read/write protected
Program Space Code Protection Bit
1 = Program space is readable and programmable
0 = Program space is read/write protected
Power-up Timer Enable Bit
1 = Power-up timer is disabled
0 = Power-up timer is enabled
Watchdog Timer Enable Bit
1 = WDT is enabled
0 = WDT is disabled
Reserved
Oscillator Selection Bit
1 = IN oscillator (internal)
0 = HS oscillator (crystal/resonator)
B7
CPC
B6
r
B5
CPP1
B4
CPP0
B3
PWRTE
B2
WDTE
B1
r
B0
FOSC
This document was created with FrameMaker 4 0 4
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PIC14000/JW 功能描述:8位微控制器 -MCU 7KB 192 RAM 20 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
PIC14000-04/SO 功能描述:8位微控制器 -MCU 7KB 192 RAM 20 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
PIC14000-04/SP 功能描述:8位微控制器 -MCU 7KB 192 RAM 20 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
PIC14000-04/SP 制造商:Microchip Technology Inc 功能描述:IC 8BIT CMOS MCU 14000 SDIL28
PIC14000-04/SS 功能描述:8位微控制器 -MCU 7KB 192 RAM 20 I/O RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
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