参数资料
型号: AT89S52-24AU
厂商: Atmel
文件页数: 30/37页
文件大小: 0K
描述: IC MCU 8K FLASH 24MHZ 44-TQFP
产品培训模块: MCU Product Line Introduction
标准包装: 160
系列: 89S
核心处理器: 8051
芯体尺寸: 8-位
速度: 24MHz
连通性: UART/USART
外围设备: WDT
输入/输出数: 32
程序存储器容量: 8KB(8K x 8)
程序存储器类型: 闪存
RAM 容量: 256 x 8
电压 - 电源 (Vcc/Vdd): 4 V ~ 5.5 V
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 44-TQFP
包装: 托盘
产品目录页面: 616 (CN2011-ZH PDF)
2010 Microchip Technology Inc.
DS41190G-page 37
PIC12F629/675
6.0
COMPARATOR MODULE
The PIC12F629/675 devices have one analog
comparator. The inputs to the comparator are
multiplexed with the GP0 and GP1 pins. There is an
on-chip Comparator Voltage Reference that can also
be applied to an input of the comparator. In addition,
GP2 can be configured as the comparator output.
The Comparator Control Register (CMCON), shown
in Register 6-1, contains the bits to control the
comparator.
REGISTER 6-1:
CMCON: COMPARATOR CONTROL REGISTER (ADDRESS: 19h)
U-0
R-0
U-0
R/W-0
—COUT
CINV
CIS
CM2
CM1
CM0
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
Unimplemented: Read as ‘0’
bit 6
COUT: Comparator Output bit
When CINV = 0:
1 = VIN+ > VIN-
0 = VIN+ < VIN-
When CINV = 1:
1 = VIN+ < VIN-
0 = VIN+ > VIN-
bit 5
Unimplemented: Read as ‘0’
bit 4
CINV: Comparator Output Inversion bit
1 = Output inverted
0 = Output not inverted
bit 3
CIS: Comparator Input Switch bit
When CM2:CM0 = 110 or 101:
1 = VIN- connects to CIN+
0 = VIN- connects to CIN-
bit 2-0
CM2:CM0: Comparator Mode bits
Figure 6-2 shows the Comparator modes and CM2:CM0 bit settings
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