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參數(shù)資料
| 型號： | IS80C31-40PQ |
| 廠商： | INTEGRATED SILICON SOLUTION INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | CMOS SINGLE CHIP 8-BIT MICROCONTROLLER |
| 中文描述： | 8-BIT, 40 MHz, MICROCONTROLLER, PQFP44 |
| 封裝： | PLASTIC, QFP-44 |
| 文件頁數(shù)： | 9/43頁 |
| 文件大小： | 337K |
| 代理商： | IS80C31-40PQ |
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IS80C51
IS80C31
Integrated Silicon Solution, Inc. — 1-800-379-4774
MC003-1D
11/19/98
9
ISSI
SPECIAL FUNCTION REGISTERS
(Continued)
Stack Pointer (SP)
The Stack Pointer Register is eight bits wide. It is
incremented before data is stored during PUSH and CALL
executions. While the stack may reside anywhere in on-
chip RAM, the Stack Pointer is initialized to 07H after a
reset. This causes the stack to begin at location 08H.
Data Pointer (DPTR)
The Data Pointer consists of a high byte (DPH) and a low
byte (DPL). Its function is to hold a 16-bit address. It may
be manipulated as a 16-bit register or as two independent
8-bit registers.
Ports 0 To 3
P0, P1, P2, and P3 are the SFR latches of Ports 0, 1, 2, and
3, respectively.
Serial Data Buffer (SBUF)
The Serial Data Buffer is actually two separate registers,
a transmit buffer and a receive buffer register. When data
is moved to SBUF, it goes to the transmit buffer, where it
is held for serial transmission. (Moving a byte to SBUF
initiates the transmission.) When data is moved from
SBUF, it comes from the receive buffer.
Timer Registers
Register pairs (TH0, TL0) and (TH1, TL1) are the 16-bit
Counter registers for Timer/Counters 0 and 1, respectively.
Control Registers
Special Function Registers IP, IE, TMOD, TCON, SCON,
and PCON contain control and status bits for the interrupt
system, the Timer/Counters, and the serial port. They are
described in later sections of this chapter.
相關PDF資料 |
PDF描述 |
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| IS80C31-40PQI | CMOS SINGLE CHIP 8-BIT MICROCONTROLLER |
| IS80C31-40W | CMOS SINGLE CHIP 8-BIT MICROCONTROLLER |
| IS80C31-40WI | CMOS SINGLE CHIP 8-BIT MICROCONTROLLER |
| IS80C51 | CMOS SINGLE CHIP 8-BIT MICROCONTROLLER |
| IS80C51-12PL | CMOS SINGLE CHIP 8-BIT MICROCONTROLLER |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| IS80C31-40PQI | 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:CMOS SINGLE CHIP 8-BIT MICROCONTROLLER |
| IS80C31-40W | 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:CMOS SINGLE CHIP 8-BIT MICROCONTROLLER |
| IS80C31-40WI | 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:CMOS SINGLE CHIP 8-BIT MICROCONTROLLER |
| IS80C31-L16 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| IS80C32 | 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:CMOS SINGLE CHIP LOW VOLTAGE 8-BIT MICROCONTROLLER |
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