參數(shù)資料
型號： PIC16LC715
廠商： Microchip Technology Inc.
英文描述： 8-Bit CMOS Microcontrollers with A/D Converter
中文描述： 8位CMOS微控制器與A / D轉換器
文件頁數(shù)： 17/176頁
文件大小： 803K
代理商： PIC16LC715
1997 Microchip Technology Inc.
DS30272A-page 17
PIC16C71X
4.2.2.1
STATUS REGISTER
The STATUS register, shown in Figure 4-7, contains
the arithmetic status of the ALU, the RESET status and
the bank select bits for data memory.
The STATUS register can be the destination for any
instruction, as with 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).
Applicable Devices
710 71 711 715
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 the Z, C or DC bits from the STATUS register. For
other instructions, not affecting any status bits, see the
"Instruction Set Summary."
Note 1:
For those devices that do not use bits IRP
and RP1 (STATUS<7:6>), maintain these
bits clear to ensure upward compatibility
with future products.
Note 2:
The C and DC bits operate as a borrow
and digit borrow bit, respectively, in sub-
traction. See the
SUBLW
and
SUBWF
instructions for examples.
FIGURE 4-7:
STATUS REGISTER (ADDRESS 03h, 83h)
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)
1 = Bank 2, 3 (100h - 1FFh)
0 = Bank 0, 1 (00h - FFh)
bit 6-5:
RP1:RP0:
Register Bank Select bits (used for direct addressing)
11
= Bank 3 (180h - 1FFh)
10
= Bank 2 (100h - 17Fh)
01
= Bank 1 (80h - FFh)
00
= Bank 0 (00h - 7Fh)
Each bank is 128 bytes
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 (
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
bit 0:
C:
Carry/borrow bit (
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
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.
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PIC16LC715-04/P 功能描述:8位微控制器 -MCU 3.5KB 128 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 安裝風格:SMD/SMT
PIC16LC715-04/SO 功能描述:8位微控制器 -MCU 3.5KB 128 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 安裝風格:SMD/SMT
PIC16LC715-04/SOG 制造商:Microchip Technology 功能描述:MCU 8-bit PIC16 PIC RISC 3.5KB EPROM 3.3V/5V 18-Pin SOIC W Tube
PIC16LC715-04/SS 功能描述:8位微控制器 -MCU 3.5KB 128 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 安裝風格:SMD/SMT
PIC16LC715-04E/P 功能描述:8位微控制器 -MCU w/A/D Low Power 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 安裝風格:SMD/SMT
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