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参数资料
型号： PIC16F676-E/P
厂商： Microchip Technology
文件页数： 44/132页
文件大小： 0K
描述： IC MCU FLASH 1KX14 W/AD 14DIP
产品培训模块： Asynchronous Stimulus
标准包装： 30
系列： PIC® 16F
核心处理器： PIC
芯体尺寸： 8-位
速度： 20MHz
外围设备： 欠压检测/复位，POR，WDT
输入/输出数： 12
程序存储器容量： 1.75KB（1K x 14）
程序存储器类型： 闪存
EEPROM 大小： 128 x 8
RAM 容量： 64 x 8
电压 - 电源 (Vcc/Vdd)： 2 V ~ 5.5 V
数据转换器： A/D 8x10b
振荡器型： 内部
工作温度： -40°C ~ 125°C
封装/外壳： 14-DIP（0.300"，7.62mm）
包装： 管件
配用： DM163029-ND - BOARD PICDEM FOR MECHATRONICS
2010 Microchip Technology Inc.
DS40039F-page 19
PIC16F630/676
2.3
PCL and PCLATH
The program counter (PC) is 13-bits wide. The low byte
comes from the PCL register, which is a readable and
writable register. The high byte (PC<12:8>) is not
directly readable or writable and comes from PCLATH.
On any Reset, the PC is cleared. Figure 2-3 shows the
two situations for the loading of the PC. The upper
example in Figure 2-3 shows how the PC is loaded on
a write to PCL (PCLATH<4:0>
PCH). The lower
example in Figure 2-3 shows how the PC is loaded
during a CALL or GOTO instruction (PCLATH<4:3>
PCH).
FIGURE 2-3:
LOADING OF PC IN
DIFFERENT SITUATIONS
2.3.1
COMPUTED GOTO
A computed GOTO is accomplished by adding an offset
to the program counter (ADDWF PCL). When perform-
ing a table read using a computed GOTO method, care
should be exercised if the table location crosses a PCL
memory boundary (each 256-byte block). Refer to the
Application Note “Implementing a Table Read"
(AN556).
2.3.2
STACK
The PIC16F630/676 family has an 8-level x 13-bit wide
hardware stack (see Figure 2-1). The stack space is
not part of either program or data space and the Stack
Pointer is not readable or writable. The PC is PUSHed
onto the stack when a CALL instruction is executed or
an interrupt causes a branch. The stack is POPed in
the event of a RETURN,
RETLW
or a RETFIE
instruction execution. PCLATH is not affected by a
PUSH or POP operation.
The stack operates as a circular buffer. This means that
after the stack has been PUSHed eight times, the ninth
push overwrites the value that was stored from the first
push. The tenth push overwrites the second push (and
so on).
PC
12
8 7
0
5
PCLATH<4:0>
PCLATH
Instruction with
ALU Result
GOTO, CALL
Opcode <10:0>
8
PC
12 11 10
0
11
PCLATH<4:3>
PCH
PCL
87
2
PCLATH
PCH
PCL
PCL as
Destination
Note 1: There are no Status bits to indicate Stack
Overflow or Stack Underflow conditions.
2: There are no instructions/mnemonics
called PUSH or POP. These are actions
that occur from the execution of the
CALL,
RETURN,
RETLW
and RETFIE
instructions or the vectoring to an
interrupt address.
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相关代理商/技术参数
参数描述
PIC16F676-I/ML 功能描述:8位微控制器 -MCU 1.75 KB 64 RAM 12I/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
PIC16F676-I/P 功能描述:8位微控制器 -MCU 1.75KB 64 RAM 12 I/O Ind Temp PDIP14 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
PIC16F676-I/P 制造商:Microchip Technology Inc 功能描述:IC 8BIT FLASH MCU 16F676 DIP14
PIC16F676-I/SL 功能描述:8位微控制器 -MCU 1.75KB 64 RAM 12 I/O Ind Temp SOIC14 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
PIC16F676-I/SL 制造商:Microchip Technology Inc 功能描述:8BIT FLASH MCU SMD 16F676 SOIC14
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