C8051F930-TB Silicon Laboratories Inc, C8051F930-TB Datasheet - Page 93
![BOARD TARGET/PROTO W/C8051F930](/photos/9/25/92560/c8051f930-tb_sml.jpg)
C8051F930-TB
Manufacturer Part Number
C8051F930-TB
Description
BOARD TARGET/PROTO W/C8051F930
Manufacturer
Silicon Laboratories Inc
Type
MCUr
Specifications of C8051F930-TB
Contents
Board
Processor To Be Evaluated
C8051F930
Processor Series
C8051F9xx
Data Bus Width
8 bit
Interface Type
I2C, UART, SPI
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Operating Supply Voltage
0.9 V to 3.6 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
C8051F930
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1472
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7.5.
The SFRs used to enable and configure the comparators are described in the following register
descriptions. A Comparator must be enabled by setting the CPnEN bit to logic 1 before it can be used.
From an enabled state, a comparator can be disabled and placed in a low power state by clearing the
CPnEN bit to logic 0.
Important Note About Comparator Settings: False rising and falling edges can be detected by the
Comparator while powering on or if changes are made to the hysteresis or response time control bits.
Therefore, it is recommended that the rising-edge and falling-edge flags be explicitly cleared to logic 0 a
short time after the comparator is enabled or its mode bits have been changed. The Comparator Power Up
Time is specified in Section “Table 4.13. Comparator Electrical Characteristics” on page 62.
SFR Definition 7.1. CPT0CN: Comparator 0 Control
SFR Page= 0x0; SFR Address = 0x9B
Name
Reset
Type
Bit
3-2
1-0
Bit
7
6
5
4
Comparator Register Descriptions
CP0HYP[1:0] Comparator0 Positive Hysteresis Control Bits.
CP0HYN[1:0] Comparator0 Negative Hysteresis Control Bits.
CP0EN
CP0OUT
R/W
CP0RIF
CP0EN
CP0FIF
Name
7
0
CP0OUT
Comparator0 Enable Bit.
0: Comparator0 Disabled.
1: Comparator0 Enabled.
Comparator0 Output State Flag.
0: Voltage on CP0+ < CP0–.
1: Voltage on CP0+ > CP0–.
Comparator0 Rising-Edge Flag. Must be cleared by software.
0: No Comparator0 Rising Edge has occurred since this flag was last cleared.
1: Comparator0 Rising Edge has occurred.
Comparator0 Falling-Edge Flag. Must be cleared by software.
0: No Comparator0 Falling-Edge has occurred since this flag was last cleared.
1: Comparator0 Falling-Edge has occurred.
00: Positive Hysteresis Disabled.
01: Positive Hysteresis = 5 mV.
10: Positive Hysteresis = 10 mV.
11: Positive Hysteresis = 20 mV.
00: Negative Hysteresis Disabled.
01: Negative Hysteresis = 5 mV.
10: Negative Hysteresis = 10 mV.
11: Negative Hysteresis = 20 mV.
R
6
0
CP0RIF
R/W
5
0
CP0FIF
R/W
Rev. 1.1
4
0
C8051F93x-C8051F92x
Function
3
CP0HYP[1:0]
0
R/W
2
0
1
CP0HYN[1:0]
0
R/W
0
0
93
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