参数资料
型号: PIC16F73-I/SO
厂商: Microchip Technology
文件页数: 40/104页
文件大小: 0K
描述: IC MCU FLASH 4KX14 A/D 28SOIC
产品培训模块: Asynchronous Stimulus
8-bit PIC® Microcontroller Portfolio
标准包装: 27
系列: PIC® 16F
核心处理器: PIC
芯体尺寸: 8-位
速度: 20MHz
连通性: I²C,SPI,UART/USART
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 22
程序存储器容量: 7KB(4K x 14)
程序存储器类型: 闪存
RAM 容量: 192 x 8
电压 - 电源 (Vcc/Vdd): 4 V ~ 5.5 V
数据转换器: A/D 5x8b
振荡器型: 外部
工作温度: -40°C ~ 85°C
封装/外壳: 28-SOIC(0.295",7.50mm 宽)
包装: 管件
产品目录页面: 640 (CN2011-ZH PDF)
配用: XLT28SO-1-ND - SOCKET TRANSITION 28SOIC 300MIL
PIC16F7X
DS30325B-page 30
2002 Microchip Technology Inc.
3.3
Reading the FLASH Program
Memory
A program memory location may be read by writing two
bytes of the address to the PMADR and PMADRH reg-
isters and then setting control bit RD (PMCON1<0>).
Once the read control bit is set, the microcontroller will
use the next two instruction cycles to read the data. The
data is available in the PMDATA and PMDATH regis-
ters after the second NOP instruction. Therefore, it can
be read as two bytes in the following instructions. The
PMDATA and PMDATH registers will hold this value
until the next read operation.
3.4
Operation During Code Protect
FLASH program memory has its own code protect
mechanism. External Read and Write operations by
programmers are disabled if this mechanism is
enabled.
The microcontroller can read and execute instructions
out of the internal FLASH program memory, regardless
of the state of the code protect configuration bits.
EXAMPLE 3-1:
FLASH PROGRAM READ
TABLE 3-1:
REGISTERS ASSOCIATED WITH PROGRAM FLASH
BSF
STATUS, RP1
;
BCF
STATUS, RP0
; Bank 2
MOVF
ADDRH, W
;
MOVWF
PMADRH
; MSByte of Program Address to read
MOVF
ADDRL, W
;
MOVWF
PMADR
; LSByte of Program Address to read
BSF
STATUS, RP0
; Bank 3 Required
Required
BSF
PMCON1, RD
; EEPROM Read Sequence
Sequence
NOP
; memory is read in the next two cycles after BSF PMCON1,RD
NOP
;
BCF
STATUS, RP0
; Bank 2
MOVF
PMDATA, W
; W = LSByte of Program PMDATA
MOVF
PMDATH, W
; W = MSByte of Program PMDATA
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Value on:
POR,
BOR
Value on
all other
RESETS
10Dh
PMADR
Address Register Low Byte
xxxx xxxx
uuuu uuuu
10Fh
PMADRH
Address Register High Byte
xxxx xxxx
uuuu uuuu
10Ch
PMDATA Data Register Low Byte
xxxx xxxx
uuuu uuuu
10Eh
PMDATH
Data Register High Byte
xxxx xxxx
uuuu uuuu
18Ch
PMCON1
(1)
RD
1--- ---0
Legend:
x
= unknown, u = unchanged, r = reserved, - = unimplemented read as '0'. Shaded cells are not used during FLASH access.
Note
1:
This bit always reads as a ‘1’.
相关PDF资料
PDF描述
39-51-3143 CONN FFC 14POS 1.25MM RT ANG ZIF
39-51-3134 CONN FFC VERT 13POS 1.25MM ZIF
PIC18LF27J53-I/SO IC PIC MCU 128KB FLASH 28SOIC
39-51-3133 CONN FFC 13POS 1.25MM RT ANG ZIF
39-51-3124 CONN FFC VERT 12POS 1.25MM ZIF
相关代理商/技术参数
参数描述
PIC16F73ISS 制造商:MICROCHIP 功能描述:New
PIC16F73T-E/SO 功能描述:8位微控制器 -MCU 7KB 192 RAM 22 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
PIC16F73T-E/SS 功能描述:8位微控制器 -MCU 7KB 192 RAM 22 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
PIC16F73T-E/SSVAO 制造商:Microchip Technology Inc 功能描述:
PIC16F73T-I/ML 功能描述:8位微控制器 -MCU 7KB 192 RAM 22 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