參數(shù)資料
型號(hào)： DS80C390-FNR
廠商： DALLAS SEMICONDUCTOR
元件分類(lèi)： Microcontroller
英文描述： 8-BIT, 40 MHz, MICROCONTROLLER, PQFP64
封裝： LQFP-64
文件頁(yè)數(shù)： 57/58頁(yè)
文件大?。?/td> 5486K
代理商： DS80C390-FNR
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
Bit4
Bit3
Bit2
Bit1
Bit0
ADDRESS
P4
P4.7
P4.6
P4.5
P4.4
P4.3
P4.2
P4.1
P4.0
80h
SP
81h
DPL
82h
DPH
83h
DPL1
84h
DPH1
85h
DPS
ID1
ID0
TSL
-
SEL
86h
PCON
SMOD_0
SMOD0
OFDF
OFDE
GF1
GF0
STOP
IDLE
87h
TCON
TF1
TR1
TF0
TR0
IE1
IT1
IE0
IT0
88h
TMOD
GATE
C/ T
M1
M0
GATE
C/ T
M1
M0
89h
TL0
8Ah
TL1
8Bh
TH0
8Ch
TH1
8Dh
CKCON
WD1
WD0
T2M
T1M
T0M
MD2
MD1
MD0
8Eh
P1
INT5/P1.7 INT4/P1.6 INT3/P1.5 INT2/P1.4 TXD1/P1.3 RXD1/P1.2 T2EX/P1.1
T2/P1.0
90h
EXIF
IE5
IE4
IE3
IE2
CKRY
RGMD
RGSL
BGS
91h
P4CNT
-
SBCAN
P4CNT.5
P4CNT.4
P4CNT.3
P4CNT.2
P4CNT.1
P4CNT.0
92h
DPX
93h
DPX1
95h
C0RMS0
96h
C0RMS1
97h
SCON0
SM0/FE_0
SM1_0
SM2_0
REN_0
TB8_0
RB8_0
TI_0
RI_0
98h
SBUF0
99h
ESP
-
ESP.1
ESP.0
9Bh
AP
9Ch
ACON
-
SA
AM1
AM0
9Dh
C0TMA0
9Eh
C0TMA1
9Fh
P2
P2.7
P2.6
P2.5
P2.4
P2.3
P2.2
P2.1
P2.0
A0h
P5
P5.7
P5.6
P5.5
P5.4
P5.3
P5.2
P5.1
P5.0
A1h
P5CNT
CAN1BA
CAN0BA
SP1EC
C1_I/O
C0_I/O
P5CNT.2
P5CNT.1
P5CNT.0
A2h
C0C
ERIE
STIE
PDE
SIESTA
CRST
AUTOB
ERCS
SWINT
A3h
C0S
BSS
EC96/128
WKS
RXS
TXS
ER2
ER1
ER0
A4h
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS80C390-FNR+ 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT
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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT
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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT
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