參數(shù)資料
型號(hào)： IS89C52
廠商： Integrated Silicon Solution, Inc.
英文描述： CMOS Single Chip 8-Bit Microcontroller with 8-Kbytes of Flash(帶8K字節(jié)閃速存儲(chǔ)器的CMOS單片8位微控制器)
中文描述： CMOS單芯片8位微控制器與8的快閃記憶體（帶8K的字節(jié)閃速存儲(chǔ)器的的CMOS單片8位微控制器）
文件頁(yè)數(shù)： 9/50頁(yè)
文件大?。?/td> 425K
代理商： IS89C52
IS89C52
Integrated Silicon Solution, Inc. — 1-800-379-4774
MC013-1C
11/21/98
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.
Capture Registers
The register pair (RCAP2H, RCAP2L) are the Capture
registers for the Timer 2 Capture Mode. In this mode, in
response to a transition at the IS89C52's T2EX pin, TH2
and TL2 are copied into RCAP2H and RCAP2L. Timer 2
also has a 16-bit auto-reload mode, and RCAP2H and
RCAP2L hold the reload value for this mode.
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(guān)PDF資料
PDF描述
IS89C52-12PQI CMOS SINGLE CHIP 8-BIT MICROCONTROLLER with 8-Kbytes of FLASH
IS89C52-12W CMOS SINGLE CHIP 8-BIT MICROCONTROLLER with 8-Kbytes of FLASH
IS93C46-3 1,024-BIT SERIAL ELECTRICALLY ERASABLE PROM
IS93C46-3G 1,024-BIT SERIAL ELECTRICALLY ERASABLE PROM
IS93C46-3GI 1,024-BIT SERIAL ELECTRICALLY ERASABLE PROM
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
IS89C52-12PL 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:CMOS SINGLE CHIP 8-BIT MICROCONTROLLER with 8-Kbytes of FLASH
IS89C52-12PLI 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:CMOS SINGLE CHIP 8-BIT MICROCONTROLLER with 8-Kbytes of FLASH
IS89C52-12PQ 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:CMOS SINGLE CHIP 8-BIT MICROCONTROLLER with 8-Kbytes of FLASH
IS89C52-12PQI 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:CMOS SINGLE CHIP 8-BIT MICROCONTROLLER with 8-Kbytes of FLASH
IS89C52-12W 制造商:ISSI 制造商全稱:Integrated Silicon Solution, Inc 功能描述:CMOS SINGLE CHIP 8-BIT MICROCONTROLLER with 8-Kbytes of FLASH
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