поискавой системы для электроныых деталей
  Russian  ▼
ALLDATASHEETRU.COM

X  

Preview PDF HTML

PIC16C72-04/SP датащи(PDF) 15 Page - Microchip Technology

номер детали PIC16C72-04/SP
подробное описание детали  8-Bit CMOS Microcontrollers with A/D Converter
PDF  124 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16C72-04/SP датащи(HTML) 15 Page - Microchip Technology

Back Button PIC16C72-04/SP Datasheet HTML 11Page - Microchip Technology PIC16C72-04/SP Datasheet HTML 12Page - Microchip Technology PIC16C72-04/SP Datasheet HTML 13Page - Microchip Technology PIC16C72-04/SP Datasheet HTML 14Page - Microchip Technology PIC16C72-04/SP Datasheet HTML 15Page - Microchip Technology PIC16C72-04/SP Datasheet HTML 16Page - Microchip Technology PIC16C72-04/SP Datasheet HTML 17Page - Microchip Technology PIC16C72-04/SP Datasheet HTML 18Page - Microchip Technology PIC16C72-04/SP Datasheet HTML 19Page - Microchip Technology Next Button
Zoom Inzoom in Zoom Outzoom out
 15 / 124 page
background image
PIC16C72 Series
© 1998 Microchip Technology Inc.
Preliminary
DS39016A-page 15
2.3
PCL and PCLATH
The program counter (PC) specifies the address of the
instruction to fetch for execution. The PC is 13 bits
wide. The low byte is called the PCL register. This reg-
ister is readable and writable. The high byte is called
the PCH register. This register contains the PC<12:8>
bits and is not directly readable or writable. All updates
to the PCH register go through the PCLATH register.
Figure 2-9 shows the four situations for the loading of
the PC. Example 1 shows how the PC is loaded on a
write to PCL (PCLATH<4:0>
→ PCH). Example 2
shows how the PC is loaded during a GOTO instruction
(PCLATH<4:3>
→ PCH). Example 3 shows how the PC
is loaded during a CALL instruction (PCLATH<4:3>
→
PCH), with the PC loaded (PUSHed) onto the Top of
Stack. Finally, example 4 shows how the PC is loaded
during one of the return instructions where the PC is
loaded (POPed) from the Top of Stack.
FIGURE 2-9:
LOADING OF PC IN DIFFERENT SITUATIONS
PC
12
8
7
0
5
PCLATH<4:0>
PCLATH
ALU result
Opcode <10:0>
8
PC
12
11 10
0
11
PCLATH<4:3>
PCH
PCL
8
7
2
PCLATH
PCH
PCL
Situation 1 - Instruction with PCL as destination
Situation 2 - GOTO Instruction
STACK (13-bits x 8)
Top of STACK
STACK (13-bits x 8)
Top of STACK
Opcode <10:0>
PC
12
11 10
0
11
PCLATH<4:3>
8
7
2
PCLATH
PCH
PCL
Situation 3 - CALL Instruction
STACK (13-bits x 8)
Top of STACK
Opcode <10:0>
PC
12
11 10
0
11
8
7
PCLATH
PCH
PCL
Situation 4 - RETURN, RETFIE, or RETLW Instruction
STACK (13-bits x 8)
Top of STACK
13
13
Note: PCLATH is not updated with the contents of PCH.



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 89 90 91 92 93 94 95 96 97 98 99 100  ...More


датащи скачать

Go To PDF Page


ссылки URL



Вашему бизинису помогли Аллдатащит?  [ DONATE ] 

Что такое Аллдатащит   |   реклама   |   контакт   |   Конфиденциальность   |   Ссылка на техническое описание    |   обмен ссыками   |   поиск по производителю
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