- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄69011 > M34559G6-XXXFP 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PQFP52 PDF資料下載
參數(shù)資料
| 型號： | M34559G6-XXXFP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PQFP52 |
| 封裝： | 10 X 10 MM, 0.65 MM PITCH, PLASTIC, LQFP-52 |
| 文件頁數(shù)： | 13/70頁 |
| 文件大?。?/td> | 1799K |
| 代理商： | M34559G6-XXXFP |
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頁當前第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
Rev.1.04
Aug 23, 2007
Page 20 of 146
REJ03B0188-0104
4559 Group
(8) Program counter (PC)
Program counter (PC) is used to specify a ROM address (page
and address). It determines a sequence in which instructions
stored in ROM are read. It is a binary counter that increments the
number of instruction bytes each time an instruction is executed.
However, the value changes to a specified address when branch
instructions, subroutine call instructions, return instructions, or
the table reference instruction (TABP p) is executed.
Program counter consists of PCH (most significant bit to bit 7)
which specifies to a ROM page and PCL (bits 6 to 0) which
specifies an address within a page. After it reaches the last
address (address 127) of a page, it specifies address 0 of the next
page (Figure 18).
Make sure that the PCH does not specify after the last page of the
built-in ROM.
(9) Data pointer (DP)
Data pointer (DP) is used to specify a RAM address and consists
of registers Z, X, and Y. Register Z specifies a RAM file group,
register X specifies a file, and register Y specifies a RAM digit
Register Y is also used to specify the port D bit position.
When using port D, set the port D bit position to register Y
certainly and execute the SD, RD, or SZD instruction (Figure
Note
Register Z of data pointer is undefined after system is released
from reset.
Also, registers Z, X and Y are undefined in the power down
mode. After system is returned from the power down mode, set
these registers.
Fig 18. Program counter (PC) structure
Fig 19. Data pointer (DP) structure
Fig 20. SD instruction execution example
a3
a2
a1
a0
a6
a5
a4
PCH
Specifying page
Program counter (PC)
p3
p2
p1
p0
p6
p5
p4
PCL
Specifying address
Register Y (4)
Data pointer (DP)
X2 X1 X0 Y3
Z1 Z0 X3
Y2 Y1 Y0
Register X (4)
Register Z (2)
Specifying RAM digit
Specifying RAM file
Specifying RAM file group
Specifying bit position
0
1
Register Y (4)
Set
D3
D2
1
D1
D0
Port D output latch
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M34570EDFP | 4-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PDSO36 |
| M34570M4-XXXFP | 4-BIT, MROM, 2 MHz, MICROCONTROLLER, PDSO36 |
| M34570M8-XXXFP | 4-BIT, MROM, MICROCONTROLLER, PDSO36 |
| M34570EDFP | 4-BIT, OTPROM, MICROCONTROLLER, PDSO36 |
| M34584EDFP | 4-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PDSO42 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M3455AG8FP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M3455AG8-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M3455AGCFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M3455AGC-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M3455-SL001 | 制造商:Alpha Wire 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。