参数资料
型号: DSPIC33FJ12MC201T-I/SS
厂商: Microchip Technology
文件页数: 60/155页
文件大小: 0K
描述: IC DSPIC MCU/DSP 12K 20SSOP
产品培训模块: Asynchronous Stimulus
标准包装: 1,600
系列: dsPIC™ 33F
核心处理器: dsPIC
芯体尺寸: 16-位
速度: 40 MIP
连通性: I²C,IrDA,SPI,UART/USART
外围设备: 高级欠压探测/复位,电机控制 PWM,QEI,POR,PWM,WDT
输入/输出数: 15
程序存储器容量: 12KB(12K x 8)
程序存储器类型: 闪存
RAM 容量: 1K x 8
电压 - 电源 (Vcc/Vdd): 3 V ~ 3.6 V
数据转换器: A/D 4x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 20-SSOP(0.209",5.30mm 宽)
包装: 带卷 (TR)
配用: DV164033-ND - KIT START EXPLORER 16 MPLAB ICD2
DM240001-ND - BOARD DEMO PIC24/DSPIC33/PIC32
其它名称: DSPIC33FJ12MC201T-I/SSTR
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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