- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄11199 > ADUC847BSZ8-5 (Analog Devices Inc)IC MCU FLASH W/24BIT ADC 52MQFP PDF資料下載
參數(shù)資料
| 型號： | ADUC847BSZ8-5 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 73/108頁 |
| 文件大小： | 0K |
| 描述： | IC MCU FLASH W/24BIT ADC 52MQFP |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | MicroConverter® ADuC8xx |
| 核心處理器： | 8052 |
| 芯體尺寸： | 8-位 |
| 速度： | 12.58MHz |
| 連通性： | I²C，SPI，UART/USART |
| 外圍設(shè)備： | POR，PSM，PWM，溫度傳感器，WDT |
| 輸入/輸出數(shù)： | 34 |
| 程序存儲器容量： | 8KB（8K x 8） |
| 程序存儲器類型： | 閃存 |
| EEPROM 大?。?/td> | 4K x 8 |
| RAM 容量： | 2.25K x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 4.75 V ~ 5.25 V |
| 數(shù)據(jù)轉(zhuǎn)換器： | A/D 10x24b; D/A 1x12b，2x16b |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | -40°C ~ 125°C |
| 封裝/外殼： | 52-QFP |
| 包裝： | 托盤 |
| 配用： | EVAL-ADUC847QSZ-ND - KIT DEV QUICK START FOR ADUC847 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第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頁第69頁第70頁第71頁第72頁當(dāng)前第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁
Data Sheet
ADuC845/ADuC847/ADuC848
Rev. C | Page 67 of 108
DUAL DATA POINTERS
The parts incorporate two data pointers. The second data
pointer is a shadow data pointer and is selected via the data
pointer control SFR (DPCON). DPCON features automatic
hardware post-increment and post-decrement as well as an
automatic data pointer toggle.
DPCON—Data Pointer Control SFR
SFR Address:
A7H
Power-On Default:
00H
Bit Addressable:
No
Table 42. DPCON SFR Bit Designations
Bit No.
Name
Description
7
----
Not Implemented. Write Don’t Care.
6
DPT
Data Pointer Automatic Toggle Enable.
Cleared by the user to disable autoswapping of the DPTR.
Set in user software to enable automatic toggling of the DPTR after each MOVX or MOVC instruction.
5, 4
DP1m1, DP1m0
Shadow Data Pointer Mode. These bits enable extra modes of the shadow data pointer operation, allowing
more compact and more efficient code size and execution.
DP1m1
DP1m0
Behavior of the Shadow Data Pointer
0
8052 behavior.
0
1
DPTR is post-incremented after a MOVX or a MOVC instruction.
1
0
DPTR is post-decremented after a MOVX or MOVC instruction.
1
DPTR LSB is toggled after a MOVX or MOVC instruction. (This instruction can be useful for
moving 8-bit blocks to/from 16-bit devices.)
3, 2
DP0m1, DP0m0
Main Data Pointer Mode. These bits enable extra modes of the main data pointer operation, allowing more
compact and more efficient code size and execution.
DP0m1
DP0m0
Behavior of the Main Data Pointer
0
8052 behavior.
0
1
DPTR is post-incremented after a MOVX or a MOVC instruction.
1
0
DPTR is post-decremented after a MOVX or MOVC instruction.
1
DPTR LSB is toggled after a MOVX or MOVC instruction. (This instruction is useful for
moving 8-bit blocks to/from 16-bit devices.)
1
----
Not Implemented. Write Don’t Care.
0
DPSEL
Data Pointer Select.
Cleared by the user to select the main data pointer. This means that the contents of this 24-bit register are
placed into the DPL, DPH, and DPP SFRs.
Set by the user to select the shadow data pointer. This means that the contents of a separate 24-bit register
appear in the DPL, DPH, and DPP SFRs.
Note the following:
The Dual Data Pointer section is the only place in which
main and shadow data pointers are distinguished.
Whenever the DPTR is mentioned elsewhere in this data
sheet, active DPTR is implied.
Only the MOVC/MOVX @DPTR instructions
automatically post-increment and post-decrement the
DPTR. Other MOVC/MOVX instructions, such as MOVC
PC or MOVC @Ri, do not cause the DPTR to automatically
post-increment and post-decrement.
To illustrate the operation of DPCON, the following code copies
256 bytes of code memory at Address D000H into XRAM,
starting from Address 0000H.
MOV DPTR,#0
;Main DPTR = 0
MOV DPCON,#55H
;Select shadow DPTR
;DPTR1 increment mode
;DPTR0 increment mode
;DPTR auto toggling ON
MOV DPTR,#0D000H ;DPTR = D000H
MOVELOOP: CLR A
MOVC A,@A+DPTR
;Get data
;Post Inc DPTR
;Swap to Main DPTR(Data)
MOVX @DPTR,A
;Put ACC in XRAM
;Increment main DPTR
;Swap Shadow DPTR(Code)
MOV A, DPL
JNZ MOVELOOP
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AT91SAM7SE512-CU-999 | IC MCU ARM7 512KB FLASH 144LFBGA |
| NLVAS4599DTT1G | IC SWITCH SPDT 6TSOP |
| ADUC843BCP62Z-5 | IC MCU FLASH 12BIT ADC 56LFCSP |
| ADUC816BSZ-REEL | IC MCU FLASH 16BIT ADC 52MQFP |
| NLVAS4599DFT2G | IC SWITCH SPDT SC88 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADUC848 | 制造商:AD 制造商全稱:Analog Devices 功能描述:MicroConverter Multichannel 24-/16-Bit ADCs with Embedded 62 kB Flash and Single-Cycle MCU |
| ADUC848BCP32-3 | 制造商:Analog Devices 功能描述:10 CHANNEL 16 BIT ADC + FLASH 8 BIT UP - Trays |
| ADUC848BCP32-5 | 制造商:Analog Devices 功能描述:10 CHANNEL 16 BIT ADC + FLASH 8 BIT UP - Trays |
| ADUC848BCP62-3 | 制造商:Analog Devices 功能描述:MCU 8-Bit ADuC8xx 8052 CISC 62KB Flash 3.3V/5V 56-Pin LFCSP EP 制造商:Rochester Electronics LLC 功能描述:8BIT CISC 62KB FLASH 12.85MHZ 3.3V 56LFCSP - Bulk |
| ADUC848BCP62-5 | 制造商:Analog Devices 功能描述:MCU 8-bit ADuC8xx 8052 CISC 62KB Flash 3.3V/5V 56-Pin LFCSP EP |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。