Os motores de busca de Datasheet de Componentes eletrônicos
  Portuguese  ▼
ALLDATASHEETPT.COM

X  

OP296 Folha de dados(PDF) 51 Page - Analog Devices

Nome de Peças OP296
Descrição Electrónicos  MicroConverter짰 12-Bit ADCs and DACs with Embedded High Speed 62-kB Flash MCU
Download  88 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrônico  AD [Analog Devices]
Página de início  http://www.analog.com
Logo AD - Analog Devices

OP296 Folha de dados(HTML) 51 Page - Analog Devices

Back Button OP296 Datasheet HTML 47Page - Analog Devices OP296 Datasheet HTML 48Page - Analog Devices OP296 Datasheet HTML 49Page - Analog Devices OP296 Datasheet HTML 50Page - Analog Devices OP296 Datasheet HTML 51Page - Analog Devices OP296 Datasheet HTML 52Page - Analog Devices OP296 Datasheet HTML 53Page - Analog Devices OP296 Datasheet HTML 54Page - Analog Devices OP296 Datasheet HTML 55Page - Analog Devices Next Button
Zoom Inzoom in Zoom Outzoom out
 51 / 88 page
background image
ADuC841/ADuC842/ADuC843
Rev. 0 | Page 51 of 88
DUAL DATA POINTER
The ADuC841/ADuC842/ADuC843 incorporate two data
pointers. The second data pointer is a shadow data pointer and
is selected via the data pointer control SFR (DPCON). DPCON
also includes some useful features such as automatic hardware
post-increment and post-decrement as well as automatic data
pointer toggle. DPCON is described in Table 21.
DPCON
Data Pointer Control SFR
SFR Address
A7H
Power-On Default
00H
Bit Addressable
No
Table 21. DPCON SFR Bit Designations
Bit No.
Name
Description
7
----
Reserved.
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 each MOVX or MOVC instruction.
5
DP1m1
Shadow Data Pointer Mode.
These two bits enable extra modes of the shadow data pointer’s operation, allowing for more compact and more
efficient code size and execution.
m1
m0
Behavior of the shadow data pointer.
0
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.
4
DP1m0
1
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
DP0m1
Main Data Pointer Mode.
These two bits enable extra modes of the main data pointer operation, allowing for more compact and more efficient
code size and execution.
m1
m0
Behavior of the main data pointer.
0
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
1
DPTR LSB is toggled after a MOVX or MOVC instruction.
2
DP0m0
(This instruction can be useful for moving 8-bit blocks to/from 16-bit devices.)
1
----
This bit is not implemented to allow the INC DPCON instruction toggle the data pointer without incrementing the rest
of the SFR.
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 three SFRs: DPL, DPH, and DPP.
Set by the user to select the shadow data pointer. This means that the contents of a separate 24-bit register appears in
the three SFRs: DPL, DPH, and DPP.
Note 1: This is the only place where the main and shadow data
pointers are distinguished. Everywhere else in this data sheet
wherever the DPTR is mentioned, operation on the active
DPTR is implied.
Note 2: Only MOVC/MOVX @DPTR instructions are relevant
above. MOVC/MOVX PC/@Ri instructions do not cause the
DPTR to automatically post increment/decrement, and so on.
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
; Shadow 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


Nº de peça semelhante - OP296

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
Analog Devices
OP296 AD-OP296 Datasheet
337Kb / 16P
   Micropower, Rail-to-Rail Input and Output Operational Amplifiers
REV. B
OP296 AD-OP296 Datasheet
287Kb / 16P
   Micropower, Rail-to-Rail Input and Output Operational Amplifiers
REV. C
logo
OPTEK Technologies
OP296A OPTEK-OP296A Datasheet
343Kb / 8P
   Plastic Infrared Emitting Diode
OP296A OPTEK-OP296A Datasheet
290Kb / 8P
   Plastic Infrared Emitting Diode
logo
TT Electronics.
OP296A TTELEC-OP296A Datasheet
1Mb / 9P
   Plastic Infrared Emitting Diode
More results

Descrição semelhante - OP296

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
Analog Devices
ADUC843BSZ62-5 AD-ADUC843BSZ62-5 Datasheet
908Kb / 88P
   MicroConverter짰 12-Bit ADCs and DACs with Embedded High Speed 62-kB Flash MCU
REV. 0
ADUC841BSZ62-5 AD-ADUC841BSZ62-5 Datasheet
908Kb / 88P
   MicroConverter짰 12-Bit ADCs and DACs with Embedded High Speed 62-kB Flash MCU
REV. 0
EVAL-ADUC831QSZ AD-EVAL-ADUC831QSZ Datasheet
1Mb / 76P
   MicroConverter짰, 12-Bit ADCs and DACs with Embedded 62 kBytes Flash MCU
REV. 0
ADUC842BSZ62-5 AD-ADUC842BSZ62-5 Datasheet
838Kb / 88P
   MicroConverter 12-Bit ADCs and DACs with Embedded High Speed 62-kB Flash MCU
REV. 0
ADUC842BSZ62-3 AD-ADUC842BSZ62-3 Datasheet
908Kb / 88P
   MicroConverter 12-Bit ADCs and DACs with Embedded High Speed 62-kB Flash MCU
REV. 0
ADUC841 AD-ADUC841_15 Datasheet
908Kb / 88P
   MicroConverter 12-Bit ADCs and DACs with Embedded High Speed 62-kB Flash MCU
Rev. 0
ADUC843 AD-ADUC843_15 Datasheet
908Kb / 88P
   MicroConverter 12-Bit ADCs and DACs with Embedded High Speed 62-kB Flash MCU
Rev. 0
ADUC841 AD-ADUC841 Datasheet
903Kb / 88P
   MicroConverter 12-Bit ADCs and DACs with Embedded High Speed 62-kB Flash MCU
REV. 0
ADUC842 AD-ADUC842_15 Datasheet
908Kb / 88P
   MicroConverter 12-Bit ADCs and DACs with Embedded High Speed 62-kB Flash MCU
Rev. 0
ADUC832BSZ AD-ADUC832BSZ Datasheet
48Kb / 3P
   MicroConverter짰, Multi-Channel 12-bit ADCs and DACs with Embedded FLASH MCU
REV. B.1 November/2002
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88


Folha de dados Download

Go To PDF Page


Ligação URL




Privacy Policy
ALLDATASHEETPT.COM
ALLDATASHEET é útil para você?  [ DONATE ] 

Sobre Alldatasheet   |   Publicidade   |   Contato conosco   |   Privacy Policy   |   roca de Link   |   Lista de Fabricantes
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com