參數(shù)資料
型號： DS80C390-QCR
元件分類： 微處理器
英文描述： Dual CAN High-Speed Microprocessor
中文描述： 雙CAN高速微處理器
文件頁數(shù)： 8/58頁
文件大?。?/td> 5486K
代理商： DS80C390-QCR
DS80C390
8 of 58
110199
required the same amount of time: two machine cycles or 24 oscillator cycles. In the DS80C390, the
MOVX instruction takes as little as two machine cycles or 8 oscillator cycles but the “MOV direct,
direct” uses three machine cycles or 12 oscillator cycles. While both are faster than their original
counterparts, they now have different execution times. This is because the device usually uses one
instruction cycle for each instruction byte. Examine the timing of each instruction for familiarity with the
changes. Note that a machine cycle now requires just 4 clocks, and provides one ALE pulse per cycle.
Many instructions require only one cycle, but some require five. Refer to the user’s guide for details and
individual instruction timing.
SPECIAL FUNCTION REGISTERS
Special Function Registers (SFRs) control most special features of the microcontroller. This allows the
device to have many new features but use the same instruction set as the 8051. When writing software to
use a new feature, an equate statement defines the SFR to an assembler or compiler. This is the only
change needed to access the new function. The DS80C390 duplicates the SFRs contained in the standard
80C52. Table 2 shows the register addresses and bit locations. Many are standard 80C52 registers. The
user’s guide contains a full description of all SFRs.
SPECIAL FUNCTION REGISTER LOCATION
Table 2
Register
Bit7
Bit6
Bit5
P4
P4.7
P4.6
P4.5
SP
DPL
DPH
DPL1
DPH1
DPS
ID1
ID0
TSL
PCON
SMOD_0
SMOD0
OFDF
TCON
TF1
TR1
TF0
TMOD
GATE
C/
T
TL0
TL1
TH0
TH1
CKCON
WD1
WD0
T2M
P1
INT5/P1.7 INT4/P1.6 INT3/P1.5 INT2/P1.4 TXD1/P1.3RXD1/P1.2 T2EX/P1.1
EXIF
IE5
IE4
IE3
P4CNT
-
SBCAN
P4CNT.5
DPX
DPX1
C0RMS0
C0RMS1
SCON0
SM0/FE_0
SM1_0
SM2_0
SBUF0
ESP
-
-
-
AP
ACON
-
-
-
C0TMA0
C0TMA1
P2
P2.7
P2.6
P2.5
P5
P5.7
P5.6
P5.5
P5CNT
CAN1BA
CAN0BA
SP1EC
C0C
ERIE
STIE
PDE
C0S
BSS
EC96/128
WKS
Bit4
P4.4
Bit3
P4.3
Bit2
P4.2
Bit1
P4.1
Bit0
P4.0
ADDRESS
80h
81h
82h
83h
84h
85h
86h
87h
88h
89h
8Ah
8Bh
8Ch
8Dh
8Eh
90h
91h
92h
93h
95h
96h
97h
98h
99h
9Bh
9Ch
9Dh
9Eh
9Fh
A0h
A1h
A2h
A3h
A4h
-
-
-
-
SEL
IDLE
IT0
M0
OFDE
TR0
M0
GF1
IE1
GATE
GF0
IT1
C/
T
STOP
IE0
M1
M1
T1M
T0M
MD2
MD1
MD0
T2/P1.0
BGS
P4CNT.0
IE2
CKRY
P4CNT.3
RGMD
P4CNT.2
RGSL
P4CNT.1
P4CNT.4
REN_0
TB8_0
RB8_0
TI_0
RI_0
-
-
-
ESP.1
ESP.0
-
-
SA
AM1
AM0
P2.4
P5.4
C1_I/O
SIESTA
RXS
P2.3
P5.3
C0_I/O
CRST
TXS
P2.2
P5.2
P2.1
P5.1
P2.0
P5.0
P5CNT.2
AUTOB
ER2
P5CNT.1
ERCS
ER1
P5CNT.0
SWINT
ER0
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS80C390-QCR+ 功能描述:8位微控制器 -MCU Dual CAN High-Speed RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
DS80C390-QNR 功能描述:8位微控制器 -MCU Dual CAN High-Speed RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
DS80C390-QNR+ 功能描述:8位微控制器 -MCU Dual CAN High-Speed RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
DS80C400 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Network Microcontroller
DS80C400_03 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Network Microcontroller
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