- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄368025 > PIC16LF84A (Microchip Technology Inc.) 18-pin Enhanced Flash/EEPROM 8-Bit Microcontroller PDF資料下載
參數(shù)資料
| 型號： | PIC16LF84A |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 18-pin Enhanced Flash/EEPROM 8-Bit Microcontroller |
| 中文描述： | 18引腳增強型閃存/ EEPROM的8位微控制器 |
| 文件頁數(shù)： | 8/68頁 |
| 文件大?。?/td> | 494K |
| 代理商： | PIC16LF84A |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁當(dāng)前第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁
PIC16F84A
DS35007A-page 8
Preliminary
1998 Microchip Technology Inc.
2.2.2.1
STATUS REGISTER
The STATUS register contains the arithmetic status of
the ALU, the RESET status and the bank select bit for
data memory.
As with any register, the STATUS register can be the
destination for any instruction. If the STATUS register is
the destination for an instruction that affects the Z, DC
or C bits, then the write to these three bits is disabled.
These bits are set or cleared according to device logic.
Furthermore, the TO and PD bits are not writable.
Therefore, the result of an instruction with the STATUS
register as destination may be different than intended.
For example,
CLRF STATUS
will clear the upper-three
bits and set the Z bit. This leaves the STATUS register
as
000u u1uu
(where
u
= unchanged).
Only the
BCF, BSF, SWAPF
and
MOVWF
instructions
should be used to alter the STATUS register (Table 7-2)
because these instructions do not affect any status bit.
FIGURE 2-1:
STATUS REGISTER (ADDRESS 03h, 83h)
Note 1:
The IRP and RP1 bits (STATUS<7:6>) are
not used by the PIC16F84A and should be
programmed as cleared. Use of these bits
as general purpose R/W bits is NOT
recommended, since this may affect
upward compatibility with future products.
Note 2:
The C and DC bits operate as a borrow
and digit borrow out bit, respectively, in
subtraction. See the
SUBLW
and
SUBWF
instructions for examples.
Note 3:
When the STATUS register is the
destination for an instruction that affects
the Z, DC or C bits, then the write to these
three bits is disabled. The specified bit(s)
will be updated according to device logic
R/W-0
IRP
bit7
R/W-0
RP1
R/W-0
RP0
R-1
TO
R-1
PD
R/W-x
Z
R/W-x
DC
R/W-x
C
R = Readable bit
W = Writable bit
U = Unimplemented bit,
read as ‘0’
- n = Value at POR reset
bit0
bit 7:
IRP
: Register Bank Select bit (used for indirect addressing)
The IRP bit is not used by the PIC16F84A. IRP should be maintained clear.
bit 6-5:
RP1:RP0
: Register Bank Select bits (used for direct addressing)
00 = Bank 0 (00h - 7Fh)
01 = Bank 1 (80h - FFh)
Each bank is 128 bytes. Only bit RP0 is used by the PIC16F84A. RP1 should be maintained clear.
bit 4:
TO
: Time-out bit
1 = After power-up,
CLRWDT
instruction, or
SLEEP
instruction
0 = A WDT time-out occurred
bit 3:
PD
: Power-down bit
1 = After power-up or by the
CLRWDT
instruction
0 = By execution of the
SLEEP
instruction
bit 2:
Z
: Zero bit
1 = The result of an arithmetic or logic operation is zero
0 = The result of an arithmetic or logic operation is not zero
bit 1:
DC
: Digit carry/borrow bit (for
ADDWF
and
ADDLW
instructions) (For borrow the polarity is reversed)
1 = A carry-out from the 4th low order bit of the result occurred
0 = No carry-out from the 4th low order bit of the result
bit 0:
C
: Carry/borrow bit (for
ADDWF
and
ADDLW
instructions)
1 = A carry-out from the most significant bit of the result occurred
0 = No carry-out from the most significant bit of the result occurred
Note:
For borrow the polarity is reversed. A subtraction is executed by adding the two’s complement of
the second operand. For rotate (
RRF
,
RLF
) instructions, this bit is loaded with either the high or low
order bit of the source register.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PIC17C42 | High-Performance 8-Bit CMOS EPROM/ROM Microcontroller(每個I/O口有20mA吸收,35mA驅(qū)動,2K 位EPROM微控制器) |
| pic17cr43 | High-Performance 8-Bit CMOS EPROM/ROM Microcontroller(每個I/O口有20mA吸收,35mA驅(qū)動,4K位EPROM) |
| PIC17C42A | High-Performance 8-Bit CMOS EPROM/ROM Microcontroller(每個I/O口有20mA吸收,35mA驅(qū)動,2K位EPROM微控制器) |
| PIC17C43 | High-Performance 8-Bit CMOS EPROM/ROM Microcontroller(每個I/O口有20mA吸收,35mA驅(qū)動,4K位EPROM微控制器) |
| PIC17C44 | High-Performance 8-Bit CMOS EPROM/ROM Microcontroller(每個I/O口有20mA吸收,35mA驅(qū)動,8K位EPROM微控制器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PIC16LF84A-04/P | 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 |
| PIC16LF84A-04/P | 制造商:Microchip Technology Inc 功能描述:8-Bit Microcontroller IC |
| PIC16LF84A-04/P | 制造商:Microchip Technology Inc 功能描述:IC 8BIT FLASH MCU 制造商:Microchip Technology Inc 功能描述:IC, 8BIT FLASH MCU |
| 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 |
| PIC16LF84A-04/SS | 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。