參數(shù)資料
型號: DSPIC33FJ12MC202-I/SS
廠商: Microchip Technology
文件頁數(shù): 60/155頁
文件大?。?/td> 0K
描述: IC DSPIC MCU/DSP 12K 28SSOP
產品培訓模塊: Asynchronous Stimulus
特色產品: PIC24FJ/33FJ MCUs & dsPIC? DSCs
標準包裝: 47
系列: dsPIC™ 33F
核心處理器: dsPIC
芯體尺寸: 16-位
速度: 40 MIP
連通性: I²C,IrDA,SPI,UART/USART
外圍設備: 高級欠壓探測/復位,電機控制 PWM,QEI,POR,PWM,WDT
輸入/輸出數(shù): 21
程序存儲器容量: 12KB(12K x 8)
程序存儲器類型: 閃存
RAM 容量: 1K x 8
電壓 - 電源 (Vcc/Vdd): 3 V ~ 3.6 V
數(shù)據(jù)轉換器: A/D 6x10b/12b
振蕩器型: 內部
工作溫度: -40°C ~ 85°C
封裝/外殼: 28-SSOP(0.209",5.30mm 寬)
包裝: 管件
產品目錄頁面: 651 (CN2011-ZH PDF)
2010 Microchip Technology Inc.
DS41303G-page 287
PIC18F2XK20/4XK20
20.8
Additional Comparator Features
There are two additional comparator features:
Simultaneous read of comparator outputs
Internal reference selection
20.8.1
SIMULTANEOUS COMPARATOR
OUTPUT READ
The MC1OUT and MC2OUT bits of the CM2CON1
register are mirror copies of both comparator outputs.
The ability to read both outputs simultaneously from a
single register eliminates the timing skew of reading
separate registers.
20.8.2
INTERNAL REFERENCE
SELECTION
There are two internal voltage references available to
the non-inverting input of each comparator. One of
these is the 1.2V Fixed Voltage Reference (FVR) and
the other is the variable Comparator Voltage Reference
(CVREF). The CxRSEL bit of the CM2CON register
determines which of these references is routed to the
Comparator Voltage reference output (CXVREF). Fur-
ther routing to the comparator is accomplished by the
CxR bit of the CMxCON0 register. See Section 21.1
and Figure 20-3 for more detail.
Note 1: Obtaining the status of C1OUT or C2OUT
by reading CM2CON1 does not affect the
comparator interrupt mismatch registers.
REGISTER 20-3:
CM2CON1: COMPARATOR 2 CONTROL REGISTER 1
R-0
R/W-0
U-0
MC1OUT
MC2OUT
C1RSEL
C2RSEL
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 7
MC1OUT: Mirror Copy of C1OUT bit
bit 6
MC2OUT: Mirror Copy of C2OUT bit
bit 5
C1RSEL: Comparator C1 Reference Select bit
1
= CVREF routed to C1VREF input
0
= FVR (1.2 Volt fixed voltage reference) routed to C1VREF input
bit 4
C2RSEL: Comparator C2 Reference Select bit
1
= CVREF routed to C2VREF input
0
= FVR (1.2 Volt fixed voltage reference) routed to C2VREF input
bit 3-0
Unimplemented: Read as ‘0’
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