C8051F221-GQR Silicon Laboratories Inc, C8051F221-GQR Datasheet - Page 106

• Manufacturer Part Number: C8051F221-GQR
• Description: IC 8051 MCU 8K FLASH 32LQFP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F2xxr

Specifications of C8051F221-GQR

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, WDT
• Number Of I /o: 22
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 22x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• Processor Series: C8051F2x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: SPI, UART
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3 bit
• Operating Supply Voltage: 2.7 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: C8051F226DK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit, 32 Channel
• For Use With: 336-1241 - DEV KIT F220/221/226/230/231/236
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

C8051F2xx
106
Bits7–0: Port0 Digital/Analog Input Mode
Bits7–0: P1.[7:0]
Bits7–0: PRT1CF.[7:0]: Output Configuration Bits for P1.7–P1.0 (respectively)
P1.7
R/W
Bit7
R/W
Bit7
R/W
Bit7
0: Corresponding Port0 pin Digital Input disabled. (For analog use, i.e., ADC).
1: Corresponding Port0 pin Digital Input is enabled.
(Write - Output appears on I/O pins per PRT0MX, PRT1MX, and PRT2MX registers)
0: Logic Low Output.
1: Logic High Output (high impedance if corresponding PRT1CF.n bit = 0)
(Read - Regardless of PRT0MX, PRT1MX, and PRT2MX Register settings).
0: P1.n pin is logic low.
1: P1.n pin is logic high.
0: Corresponding P1.n Output Mode is Open-Drain.
1: Corresponding P1.n Output Mode is Push-Pull.
SFR Definition 14.6. P0MODE: Port0 Digital/Analog Input Mode
P1.6
SFR Definition 14.8. PRT1CF: Port1 Configuration Register
R/W
Bit6
R/W
Bit6
R/W
Bit6
P1.5
R/W
R/W
Bit5
Bit5
R/W
SFR Definition 14.7. P1: Port1 Register
Bit5
P1.4
R/W
Bit4
R/W
Bit4
R/W
Bit4
P1.3
R/W
Bit3
Rev. 1.6
R/W
Bit3
R/W
Bit3
P1.2
R/W
Bit2
R/W
Bit2
R/W
Bit2
P1.1
R/W
Bit1
R/W
Bit1
R/W
Bit1
(bit addressable)
P1.0
R/W
Bit0
R/W
Bit0
R/W
Bit0
SFR Address:
SFR Address:
Reset Value
SFR Address:
Reset Value
Reset Value
11111111
11111111
00000000
0xF1
0x90
0xA5