參數(shù)資料
型號: PIC16LF870-I/SS
廠商: Microchip Technology
文件頁數(shù): 139/143頁
文件大?。?/td> 0K
描述: IC MCU FLASH 2KX14 EE A/D 28SSOP
產(chǎn)品培訓(xùn)模塊: Asynchronous Stimulus
8-bit PIC® Microcontroller Portfolio
標準包裝: 47
系列: PIC® 16F
核心處理器: PIC
芯體尺寸: 8-位
速度: 20MHz
連通性: UART/USART
外圍設(shè)備: 欠壓檢測/復(fù)位,POR,PWM,WDT
輸入/輸出數(shù): 22
程序存儲器容量: 3.5KB(2K x 14)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 64 x 8
RAM 容量: 128 x 8
電壓 - 電源 (Vcc/Vdd): 2 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 5x10b
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 28-SSOP(0.209",5.30mm 寬)
包裝: 管件
產(chǎn)品目錄頁面: 639 (CN2011-ZH PDF)
2003 Microchip Technology Inc.
DS30569B-page 93
PIC16F870/871
TABLE 11-4:
STATUS BITS AND THEIR SIGNIFICANCE
TABLE 11-5:
RESET CONDITION FOR SPECIAL REGISTERS
POR
BOR
TO
PD
0x
1
Power-on Reset
0x
0
x
Illegal, TO is set on POR
0x
x
0
Illegal, PD is set on POR
10
1
Brown-out Reset
11
0
1
WDT Reset
11
0
WDT Wake-up
11
u
MCLR Reset during normal operation
11
1
0
MCLR Reset during SLEEP or interrupt wake-up from SLEEP
Legend:
x
= don’t care, u = unchanged
Condition
Program
Counter
STATUS
Register
PCON
Register
Power-on Reset
000h
0001 1xxx
---- --0x
MCLR Reset during normal operation
000h
000u uuuu
---- --uu
MCLR Reset during SLEEP
000h
0001 0uuu
---- --uu
WDT Reset
000h
0000 1uuu
---- --uu
WDT Wake-up
PC + 1
uuu0 0uuu
---- --uu
Brown-out Reset
000h
0001 1uuu
---- --u0
Interrupt wake-up from SLEEP
PC + 1(1)
uuu1 0uuu
---- --uu
Legend:
u
= unchanged, x = unknown, - = unimplemented bit, read as '0'
Note 1:
When the wake-up is due to an interrupt and the GIE bit is set, the PC is loaded with the interrupt vector (0004h).
TABLE 11-6:
INITIALIZATION CONDITIONS FOR ALL REGISTERS
Register
Devices
Power-on Reset,
Brown-out Reset
MCLR Resets
WDT Reset
Wake-up via WDT or
Interrupt
W
PIC16F870
PIC16F871
xxxx xxxx
uuuu uuuu
INDF
PIC16F870
PIC16F871
N/A
TMR0
PIC16F870
PIC16F871
xxxx xxxx
uuuu uuuu
PCL
PIC16F870 PIC16F871
0000h
PC + 1(2)
STATUS
PIC16F870 PIC16F871
0001 1xxx
000q quuu(3)
uuuq quuu(3)
FSR
PIC16F870
PIC16F871
xxxx xxxx
uuuu uuuu
PORTA
PIC16F870
PIC16F871
--0x 0000
--0u 0000
--uu uuuu
PORTB
PIC16F870
PIC16F871
xxxx xxxx
uuuu uuuu
PORTC
PIC16F870
PIC16F871
xxxx xxxx
uuuu uuuu
PORTD
PIC16F870
PIC16F871
xxxx xxxx
uuuu uuuu
PORTE
PIC16F870
PIC16F871
---- -xxx
---- -uuu
PCLATH
PIC16F870
PIC16F871
---0 0000
---u uuuu
INTCON
PIC16F870 PIC16F871
0000 000x
0000 000u
uuuu uuuu(1)
Legend:
u
= unchanged, x = unknown, - = unimplemented bit, read as '0', q = value depends on condition,
r
= reserved, maintain clear
Note 1:
One or more bits in INTCON, PIR1 and/or PIR2 will be affected (to cause wake-up).
2:
When the wake-up is due to an interrupt and the GIE bit is set, the PC is loaded with the interrupt vector
(0004h).
3:
See Table 11-5 for RESET value for specific condition.
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