PIC16C5X
DS30453D-page 44
Preliminary
2002 Microchip Technology Inc.
9.1
Configuration Bits
Configuration bits can be programmed to select various
device configurations. Two bits are for the selection of
the oscillator type and one bit is the Watchdog Timer
enable bit. Nine bits are code protection bits for the
PIC16C54A,
PIC16CR54A,
PIC16C54C,
PIC16CR54C,
PIC16C55A,
PIC16C56A,
PIC16CR56A,
PIC16C57C,
PIC16CR57C,
PIC16C58B, and PIC16CR58B devices (Register 9-1).
One bit is for code protection for the PIC16C54,
PIC16C55,
PIC16C56
and
PIC16C57
devices
QTP or ROM devices have the oscillator configuration
programmed at the factory and these parts are tested
accordingly (see "Product Identification System" dia-
grams in the back of this data sheet).
REGISTER 9-1:
CONFIGURATION WORD FOR PIC16C54A/CR54A/C54C/CR54C/C55A/C56A/
CR56A/C57C/CR57C/C58B/CR58B
CP
WDTE
FOSC1
FOSC0
bit 11
bit 0
bit 11-3:
CP: Code Protection Bit
1
= Code protection off
0
= Code protection on
bit 2:
WDTE: Watchdog timer enable bit
1
= WDT enabled
0
= WDT disabled
bit 1-0:
FOSC1:FOSC0: Oscillator Selection Bit
00
= LP oscillator
01
= XT oscillator
10
= HS oscillator
11
= RC oscillator
Note 1: Refer to the PIC16C5X Programming Specification (Literature Number DS30190) to determine how to
access the configuration word.
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
1 = bit is set
0 = bit is cleared
x = bit is unknown
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相关代理商/技术参数
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PIC16C55A-04/P 制造商:Microchip Technology Inc 功能描述:Microcontroller IC Number of I/Os:20
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PIC16C55A-04/SS 功能描述:8位微控制器 -MCU .75KB 24 RAM 20 I/O 4 MHz SSOP-28 RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC16C55A-04E/P 功能描述:8位微控制器 -MCU .75KB 24 RAM 20 I/O RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
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