參數(shù)資料
型號(hào): PIC16LF84-04/SO
廠商: Microchip Technology
文件頁(yè)數(shù): 25/80頁(yè)
文件大?。?/td> 0K
描述: IC MCU FLASH 1KX14 EE 18SOIC
產(chǎn)品培訓(xùn)模塊: Asynchronous Stimulus
8-bit PIC® Microcontroller Portfolio
標(biāo)準(zhǔn)包裝: 42
系列: PIC® 16F
核心處理器: PIC
芯體尺寸: 8-位
速度: 4MHz
外圍設(shè)備: POR,WDT
輸入/輸出數(shù): 13
程序存儲(chǔ)器容量: 1.75KB(1K x 14)
程序存儲(chǔ)器類型: 閃存
EEPROM 大?。?/td> 64 x 8
RAM 容量: 68 x 8
電壓 - 電源 (Vcc/Vdd): 2 V ~ 6 V
振蕩器型: 外部
工作溫度: 0°C ~ 70°C
封裝/外殼: 18-SOIC(0.295",7.50mm 寬)
包裝: 管件
其它名稱: PIC16LC84A-04/SO
PIC16F8X
1998 Microchip Technology Inc.
DS30430C-page 31
6.3.1
SWITCHING PRESCALER ASSIGNMENT
The prescaler assignment is fully under software
control (i.e., it can be changed “on the fly” during
program execution).
EXAMPLE 6-1:
CHANGING PRESCALER
(TIMER0
→WDT)
BCF
STATUS, RP0
;Bank 0
CLRF
TMR0
;Clear TMR0
; and Prescaler
BSF
STATUS, RP0
;Bank 1
CLRWDT
;Clears WDT
MOVLW
b’xxxx1xxx’
;Select new
MOVWF
OPTION_REG
; prescale value
BCF
STATUS, RP0
;Bank 0
EXAMPLE 6-2:
CHANGING PRESCALER
(WDT
→TIMER0)
CLRWDT
;Clear WDT and
; prescaler
BSF
STATUS, RP0
;Bank 1
MOVLW
b’xxxx0xxx’
;Select TMR0, new
; prescale value
’ and clock source
MOVWF
OPTION_REG
;
BCF
STATUS, RP0
;Bank 0
TABLE 6-1
REGISTERS ASSOCIATED WITH TIMER0
Note:
To avoid an unintended device RESET, the
following
instruction
sequence
(Example 6-1) must be executed when
changing the prescaler assignment from
Timer0 to the WDT. This sequence must
be taken even if the WDT is disabled. To
change prescaler from the WDT to the
Timer0 module use the sequence shown in
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Value on
Power-on
Reset
Value on all
other resets
01h
TMR0
Timer0 module’s register
xxxx xxxx
uuuu uuuu
0Bh
INTCON
GIE
EEIE
T0IE
INTE
RBIE
T0IF
INTF
RBIF
0000 000x
0000 0000
81h
OPTION_
REG
RBPU
INTEDG
T0CS
T0SE
PSA
PS2
PS1
PS0
1111 1111
85h
TRISA
TRISA4
TRISA3
TRISA2
TRISA1
TRISA0
---1 1111
Legend: x = unknown, u = unchanged. - = unimplemented read as ’0’. Shaded cells are not associated with Timer0.
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PIC16LF84A-04/SO 功能描述:8位微控制器 -MCU 1.75KB 68 RAM 13 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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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