參數(shù)資料
型號： PIC16C765T-I/PT
廠商： Microchip Technology
文件頁數(shù)： 81/165頁
文件大?。?/td> 0K
描述： IC MCU OTP 8KX14 USB 44TQFP
產品培訓模塊： Asynchronous Stimulus
標準包裝： 1,200
系列： PIC® 16C
核心處理器： PIC
芯體尺寸： 8-位
速度： 24MHz
連通性： SCI，UART/USART，USB
外圍設備： 欠壓檢測/復位，POR，PWM，WDT
輸入/輸出數(shù)： 33
程序存儲器容量： 14KB（8K x 14）
程序存儲器類型： OTP
RAM 容量： 256 x 8
電壓 - 電源 (Vcc/Vdd)： 4.35 V ~ 5.25 V
數(shù)據(jù)轉換器： A/D 8x8b
振蕩器型： 外部
工作溫度： -40°C ~ 85°C
封裝/外殼： 44-TQFP
包裝： 帶卷 (TR)
PIC16C745/765
DS41124C-page 22
Preliminary
2000 Microchip Technology Inc.
4.2.2.1
STATUS REGISTER
The STATUS register, shown in Register 4-1, 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).
It is recommended that only BCF, BSF, SWAPF and
MOVWF
instructions be used to alter the STATUS regis-
ter. These instructions do not affect the Z, C or DC bits
in the STATUS register. For other instructions which do
not affect status bits, see the "Instruction Set Sum-
mary."
REGISTER 4-1:
STATUS REGISTER (STATUS: 03h, 83h, 103h, 183h)
Note 1: The C and DC bits operate as borrow and
digit borrow bits, respectively, in subtrac-
tion. See the SUBLW and SUBWF instruc-
tions for examples.
R/W-0
R-1
R/W-x
IRP
RP1
RP0
TO
PD
ZDC
C(1)
R = Readable bit
W = Writable bit
U = Unimplemented bit,
read as ‘0’
- n = Value at POR reset
bit7
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:
RP<1:0>: Register Bank Select bits (used for direct addressing)
00
= Bank 0 (00h - 7Fh)
01
= Bank 1 (80h - FFh)
10
= Bank 2 (100h - 17Fh)
11
= Bank 3 (180h - 1FFh)
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)(1)
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)
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 1: For borrow the polarity is reversed. A subtraction is executed by adding the two’s complement of the sec-
ond operand. For rotate (RRF, RLF) instructions, this bit is loaded with either the high or low order bit of the
source register.
745cov.book Page 22 Wednesday, August 2, 2000 8:24 AM
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PIC16C76T-04I/SO 功能描述:8位微控制器 -MCU 14KB 368 RAM 22 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
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