C8051F340-GQR Silicon Laboratories Inc, C8051F340-GQR Datasheet - Page 66

• Manufacturer Part Number: C8051F340-GQR
• Description: MCU 8-Bit C8051F34x 8051 CISC 64KB Flash 3.3V/5V 48-Pin TQFP T/R
• Manufacturer: Silicon Laboratories Inc

Specifications of C8051F340-GQR

• Package: 48TQFP
• Device Core: 8051
• Family Name: C8051F34x
• Maximum Speed: 48 MHz
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 40
• Interface Type: I2C/SMBus/SPI/UART/USB
• On-chip Adc: 17-chx10-bit
• Number Of Timers: 4
• Ram Size: 4.25 KB
• Program Memory Size: 64 KB
• Program Memory Type: Flash
• Operating Temperature: -40 to 85 °C

C8051F340/1/2/3/4/5/6/7/8/9/A/B/C/D
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Bit7:
Bits6–4: CMX1N2–CMX1N0: Comparator1 Negative Input MUX Select.
Bit3:
Bits2–0: CMX1P1–CMX1P0: Comparator1 Positive Input MUX Select.
Note that the port pins used by the comparator depend on the package type (32-pin or 48-pin).
R/W
Bit7
-
UNUSED. Read = 0b, Write = don’t care.
These bits select which Port pin is used as the Comparator1 negative input.
UNUSED. Read = 0b, Write = don’t care.
These bits select which Port pin is used as the Comparator1 positive input.
CMX1N2 CMX1N1 CMX1N0
CMX1P2 CMX1P1 CMX1P0
CMX1N2 CMX1N1 CMX1N0
SFR Definition 7.5. CPT1MX: Comparator1 MUX Selection
0
0
0
0
1
0
0
0
0
1
R/W
Bit6
0
0
1
1
0
0
0
1
1
0
R/W
Bit5
0
1
0
1
0
0
1
0
1
0
R/W
Bit4
(32-pin Package)
(32-pin Package)
Negative Input
Positive Input
Rev. 1.3
R/W
Bit3
-
P1.3
P1.7
P2.3
P2.7
P0.5
P1.2
P1.6
P2.2
P2.6
P0.4
CMX1P2 CMX1P1 CMX1P0 00000000
R/W
Bit2
(48-pin Package)
(48-pin Package)
Negative Input
Positive Input
R/W
Bit1
P2.3
P3.1
P4.0
P4.6
P1.2
P2.2
P3.0
P3.7
P4.5
P1.1
R/W
Bit0
SFR Address:
Reset Value
0x9E