參數(shù)資料
型號： PIC12HV615
廠商： Microchip Technology Inc.
英文描述： 8-Pin Flash-Based, 8-Bit CMOS Microcontrollers
中文描述： 8引腳閃存的基礎(chǔ)上，8位CMOS微控制器
文件頁數(shù)： 17/168頁
文件大?。?/td> 1347K
代理商： PIC12HV615
2006 Microchip Technology Inc.
Preliminary
DS41302A-page 15
PIC12F609/615/12HV609/615
2.2.2.1
STATUS Register
The STATUS register, shown in Register 2-1, contains:
the arithmetic status of the ALU
the Reset status
the bank select bits for data memory (RAM)
The STATUS register can be the destination for any
instruction, like any other register. 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 the
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).
It is recommended, therefore, that only
BCF, BSF,
SWAPF
and
MOVWF
instructions are used to alter the
STATUS register, because these instructions do not
affect any Status bits. For other instructions not affect-
ing any Status bits, see the
Section 13.0 “Instruction
Set Summary”
.
REGISTER 2-1:
Note 1:
Bits IRP and RP1 of the STATUS register
are not used by the PIC12F609/615/
12HV609/615 and should be maintained
as clear. Use of these bits is not recom-
mended, since this may affect upward
compatibility with future products.
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.
STATUS: STATUS REGISTER
Reserved
IRP
bit 7
Reserved
RP1
R/W-0
RP0
R-1
TO
R-1
PD
R/W-x
Z
R/W-x
DC
R/W-x
C
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 7
bit 6
bit 5
IRP:
This bit is reserved and should be maintained as ‘
0
’
RP1:
This bit is reserved and should be maintained as ‘
0
’
RP0:
Register Bank Select bit (used for direct addressing)
1
= Bank 1 (80h – FFh)
0
= Bank 0 (00h – 7Fh)
TO:
Time-out bit
1
= After power-up,
CLRWDT
instruction or
SLEEP
instruction
0
= A WDT time-out occurred
PD:
Power-down bit
1
= After power-up or by the
CLRWDT
instruction
0
= By execution of the
SLEEP
instruction
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
DC:
Digit Carry/Borrow bit (
ADDWF
,
ADDLW,SUBLW,SUBWF
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
C:
Carry/Borrow bit
(1)
(
ADDWF
,
ADDLW, SUBLW, SUBWF
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
bit 4
bit 3
bit 2
bit 1
bit 0
Note 1:
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-order or low-order
bit of the source register.
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PIC12HV615-E/MD 功能描述:8位微控制器 -MCU 2KB Flash 64 RAM 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
PIC12HV615-E/MF 功能描述:8位微控制器 -MCU 1.75KB Flash 64B RAM 6 I/O 8MHz INT OSC 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
PIC12HV615-E/MS 功能描述:8位微控制器 -MCU 2KB Flash 64 RAM 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
PIC12HV615-E/P 功能描述:8位微控制器 -MCU 2KB Flash 64 RAM 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
PIC12HV615-E/SN 功能描述:8位微控制器 -MCU 2KB Flash 64 RAM 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
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