參數(shù)資料
型號: EVAL-ADUC841QSZ
廠商: Analog Devices Inc
文件頁數(shù): 55/88頁
文件大?。?/td> 0K
描述: KIT DEV FOR ADUC841 QUICK START
產品培訓模塊: Process Control
標準包裝: 1
系列: QuickStart™ 套件
類型: MCU
適用于相關產品: ADuC841
所含物品: 評估板、電源、纜線、軟件和說明文檔
產品目錄頁面: 739 (CN2011-ZH PDF)
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ADUC841BCPZ62-5-ND - IC MCU 62K FLASH ADC/DAC 56LFCSP
ADUC841BCPZ8-3-ND - IC MCU 8KB FLASH ADC/DAC 56LFCSP
ADUC841BCPZ8-5-ND - IC MCU 8KB FLASH ADC/DAC 56LFCSP
ADUC841BSZ62-5-ND - IC ADC/DAC 12BIT W/MCU 52-MQFP
ADUC841BSZ62-3-ND - IC ADC/DAC 12BIT W/MCU 52-MQFP
其它名稱: EVAL-ADUC841QS
EVAL-ADUC841QS-ND
ADuC841/ADuC842/ADuC843
Rev. 0 | Page 59 of 88
MOSI is shared with P3.3 and, as such, has the same
configuration as the one shown in Figure 61.
MCO
I2C M
Q3
Q4
SCLOCK
PIN
Q2
Q1
(OFF)
DVDD
50ns GLITCH
REJECTION FILTER
SPE = 0 (I2C ENABLE)
HARDWARE I2C
(SLAVE ONLY)
SFR
BITS
03260-0-062
Figure 63. SCLOCK Pin I/O Functional Equivalent in I2C Mode
Q3
Q1
Q2 (OFF)
DVDD
Q4 (OFF)
SDATA/
MOSI
PIN
SPE = 1 (SPI ENABLE)
HARDWARE SPI
(MASTER/SLAVE)
03260-0-097
Figure 64. SDATA/MOSI Pin I/O Functional Equivalent in SPI Mode
Q3
Q4
Q2
Q1
DVDD
MCO
SDATA/
MOSI
PIN
(OFF)
50ns GLITCH
REJECTION FILTER
SPE = 0 (I2C ENABLE)
HARDWARE I2C
(SLAVE ONLY)
SFR
BITS
MCI
MDE
I2C M
03260-0-063
Figure 65. SDATA/MOSI Pin I/O Functional Equivalent in I2C Mode
Read-Modify-Write Instructions
Some 8051 instructions that read a port read the latch while
others read the pin. The instructions that read the latch rather
than the pins are the ones that read a value, possibly change it,
and then rewrite it to the latch. These are called read-modify-
write instructions, which are listed below. When the destination
operand is a port or a port bit, these instructions read the latch
rather than the pin.
Table 27. Read-Write-Modify Instructions
Instruction
Description
ANL
Logical AND, e.g., ANL P1, A
ORL
(Logical OR, e.g., ORL P2, A
XRL
(Logical EX-OR, e.g., XRL P3, A
JBC
Jump if Bit = 1 and clear bit, e.g., JBC P1.1,
LABEL
CPL
Complement bit, e.g., CPL P3.0
INC
Increment, e.g., INC P2
DEC
Decrement, e.g., DEC P2
DJNZ
Decrement and Jump if Not Zero, e.g., DJNZ
P3, LABEL
MOV PX.Y, C1
Move Carry to Bit Y of Port X
CLR PX.Y1
Clear Bit Y of Port X
SETB PX.Y1
Set Bit Y of Port X
1 These instructions read the port byte (all 8 bits), modify the addressed bit,
and then write the new byte back to the latch.
Read-modify-write instructions are directed to the latch rather
than to the pin to avoid a possible misinterpretation of the
voltage level of a pin. For example, a port pin might be used to
drive the base of a transistor. When 1 is written to the bit, the
transistor is turned on. If the CPU then reads the same port bit
at the pin rather than the latch, it reads the base voltage of the
transistor and interprets it as a Logic 0. Reading the latch rather
than the pin returns the correct value of 1.
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EVAL-ADUC842QS1 制造商:AD 制造商全稱:Analog Devices 功能描述:MicroConverter 12-Bit ADCs and DACs with Embedded High Speed 62-kB Flash MCU
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EVAL-ADUC842QSP2 制造商:AD 制造商全稱:Analog Devices 功能描述:MicroConverter 12-Bit ADCs and DACs with Embedded High Speed 62-kB Flash MCU
EVAL-ADUC842QSPZ 功能描述:KIT DEV QUICK START ADUC842 RoHS:是 類別:編程器,開發(fā)系統(tǒng) >> 通用嵌入式開發(fā)板和套件(MCU、DSP、FPGA、CPLD等) 系列:QuickStart™ PLUS 套件 標準包裝:1 系列:PICDEM™ 類型:MCU 適用于相關產品:PIC10F206,PIC16F690,PIC16F819 所含物品:板,線纜,元件,CD,PICkit 編程器 產品目錄頁面:659 (CN2011-ZH PDF)