參數(shù)資料
型號: C8051F221R
廠商: Silicon Laboratories Inc
文件頁數(shù): 120/146頁
文件大小: 0K
描述: IC 8051 MCU 8K FLASH 32LQFP
標準包裝: 1
系列: C8051F2xx
核心處理器: 8051
芯體尺寸: 8-位
速度: 25MHz
連通性: SPI,UART/USART
外圍設備: 欠壓檢測/復位,POR,WDT
輸入/輸出數(shù): 22
程序存儲器容量: 8KB(8K x 8)
程序存儲器類型: 閃存
RAM 容量: 256 x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 22x8b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 32-LQFP
包裝: 剪切帶 (CT)
其它名稱: 336-1009-1
C8051F2xx
Rev. 1.6
75
SFR Definition 9.7. SWCINT: Software Controlled Interrupt Register
Bit7:
SCI3: Software Controlled Interrupt 3 Bit.
If enabled, writing a logic 1 to this interrupt control bit will cause the CPU to vector to the
SCI3 interrupt service routine. This bit is not cleared in hardware. It must be cleared by
software.
Bit6:
SCI2: Software Controlled Interrupt 2 Bit.
If enabled, writing a logic 1 to this interrupt control bit will cause the CPU to vector to the
SCI2 interrupt service routine. This bit is not cleared in hardware. It must be cleared by
software.
Bit5:
SCI1: Software Controlled Interrupt 1 Bit.
If enabled, writing a logic 1 to this interrupt control bit will cause the CPU to vector to the
SCI1 interrupt service routine. This bit is not cleared in hardware. It must be cleared by
software.
Bit4:
SCI0: Software Controlled Interrupt 0 Bit.
If enabled, writing a logic 1 to this interrupt control bit will cause the CPU to vector to the
SCI0 interrupt service routine. This bit is not cleared in hardware. It must be cleared by
software.
Bits3–0: UNUSED. Read = 0000b, Write = don't care.
R/W
Reset Value
SCI3
SCI2
SCI1
SCI0
-
00000000
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
SFR Address:
0xAD
Table 9.4. Interrupt Summary
Interrupt Source
Interrupt
Vector
Priority
Order
Interrupt-Pending Flag
Enable
Reset
0x0000
Top
None
Always enabled
External Interrupt 0 (/INT0)
0x0003
0
IE0 (TCON.1)
EX0 (IE.0)
Timer 0 Overflow
0x000B
1
TF0 (TCON.5)
ET0 (IE.1)
External Interrupt 1 (/INT1)
0x0013
2
IE1 (TCON.3)
EX1 (IE.2)
Timer 1 Overflow
0x001B
3
TF1 (TCON.7)
ET1 (IE.3)
Serial Port (UART)
0x0023
4
RI (SCON.0)
TI (SCON.1)
ES (IE.4)
Timer 2 Overflow (or EXF2)
0x002B
5
TF2 (T2CON.7)
ET2 (IE.5)
Serial Peripheral Interface
0x0033
6
SPIF (SPI0STA.7)
WCOL (SPI0CN.6)
MODF (SPI0CN.5)
RXOVRN (SPI0CN.4)
ESPI0 (EIE1.0)
ADC0 Window Comparison
0x0043
8
ADWINT (ADC0CN.2)
EWADC0 (EIE1.2)
Comparator 0 Falling Edge
0x0053
10
CP0FIF (CPT0CN.4)
ECP0F (EIE1.4)
Comparator 0 Rising Edge
0x005B
11
CP0RIF (CPT0CN.5)
ECP0R (EIE1.5)
Comparator 1 Falling Edge
0x0063
12
CP1FIF (CPT1CN.4)
ECP1F (EIE1.6)
Comparator 1 Rising Edge
0x006B
13
CP1RIF (CPT1CN.5)
ECP1R (EIE1.7)
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