参数资料
型号: 73S1210F-44IMR/F
厂商: Maxim Integrated Products
文件页数: 74/126页
文件大小: 0K
描述: IC SMART CARD READER 44-QFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
系列: 73S12xx
核心处理器: 80515
芯体尺寸: 8-位
速度: 24MHz
连通性: I²C,智能卡,UART/USART
外围设备: LED,POR,WDT
输入/输出数: 8
程序存储器容量: 32KB(32K x 8)
程序存储器类型: 闪存
RAM 容量: 2K x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 6.5 V
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 44-VFQFN 裸露焊盘
包装: 带卷 (TR)
DS_1210F_001
73S1210F Data Sheet
Rev. 1.4
51
1.7.10 Analog Voltage Comparator
The 73S1210F includes a programmable comparator that is connected to the ANA_IN pin. The
comparator can be configured to trigger an interrupt if the input voltage rises above or falls below a
selectable threshold voltage. The comparator control register should not be modified when the analog
interrupt (ANAIEN bit in the INT6Ctl register) is enabled to guard against any false interrupt that might be
generated when modifying the threshold. The comparator has a built-in hysteresis to prevent the
comparator from repeatedly responding to low-amplitude noise. This hysteresis is approximately 20mV.
Interrupt control is handled in the INT6Ctl register.
Analog Compare Control Register (ACOMP): 0xFFD0
0x00
Table 54: The ACOMP Register
MSB
LSB
ANALVL
ONCHG
CPOL
CMPEN
TSEL.2
TSEL.1
TSEL.0
Bit
Symbol
Function
ACOMP.7
ANALVL
When read, indicates whether the input level is above or below the
threshold. This is a real time value and is not latched, so it may change
from the time of the interrupt trigger until read.
ACOMP.6
ACOMP.5
ONCHG
If set, the Ana_interrupt is invoked on any change above or below the
threshold, bit 4 is ignored.
ACOMP.4
CPOL
If set = 1, Ana_interrupt is invoked when signal rises above selected
threshold. If set = 0, Ana_interrupt is invoked when signal goes below
selected threshold (default).
ACOMP.3
CMPEN
Enables power to the analog comparator. 1 = Enabled. 0 = Disabled
(default).
ACOMP.2
TSEL.2
Sets the voltage threshold for comparison to the voltage on pin ANA_IN.
Thresholds are as follows:
TSEL.2
TSEL.1
TSEL.0
Voltage Threshold
0
1.00V
0
1
1.24V
0
1
0
1.40V
0
1
1.50V
1
0
1.75V
1
0
1
2.00V
1
0
2.30V
1
2.50V
ACOMP.1
TSEL.1
ACOMP.0
TSEL.0
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