C8051F502-IMR Silicon Laboratories Inc, C8051F502-IMR Datasheet - Page 77
C8051F502-IMR
Manufacturer Part Number
C8051F502-IMR
Description
MCU 8-Bit C8051F50x 8051 CISC 64KB Flash 2.5V/3.3V/5V 32-Pin QFN EP T/R
Manufacturer
Silicon Laboratories Inc
Datasheet
1.C8051F502-IM.pdf
(312 pages)
Specifications of C8051F502-IMR
Package
32QFN EP
Device Core
8051
Family Name
C8051F50x
Maximum Speed
50 MHz
Ram Size
4.25 KB
Program Memory Size
64 KB
Operating Supply Voltage
2.5|3.3|5 V
Data Bus Width
8 Bit
Program Memory Type
Flash
Number Of Programmable I/os
25
Interface Type
I2C/SPI/UART
On-chip Adc
32-chx12-bit
Operating Temperature
-40 to 125 °C
Number Of Timers
4
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Note that false rising edges and falling edges can be detected when the comparator is first powered 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.
SFR Definition 9.1. CPT0CN: Comparator0 Control
SFR Address = 0x9A; SFR Page = 0x00
Reset
Name
Bit
3:2 CP0HYP[1:0] Comparator0 Positive Hysteresis Control Bits.
1:0 CP0HYN[1:0] Comparator0 Negative Hysteresis Control Bits.
Type
7
6
5
4
Bit
CP0OUT
CP0RIF
CP0FIF
CP0EN
Name
CP0EN
R/W
7
0
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.
CP0OUT
R
0
6
CP0RIF
R/W
5
0
CP0FIF
R/W
Rev. 1.2
4
0
Function
3
CP0HYP[1:0]
0
R/W
C8051F50x/F51x
2
0
1
CP0HYN[1:0]
0
R/W
0
0
77
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