C8051F819-GM Silicon Laboratories Inc, C8051F819-GM Datasheet - Page 142

• Manufacturer Part Number: C8051F819-GM
• Description: IC MCU 8BIT 8KB FLASH 20QFN
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F81xr

Specifications of C8051F819-GM

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: Cap Sense, POR, PWM, WDT
• Number Of I /o: 17
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-QFN
• Processor Series: C8051F8x
• Core: 8051
• Data Bus Width: 16 bit
• Data Ram Size: 512 B
• Interface Type: I2C, SPI, UART
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 17
• Number Of Timers: 3
• Operating Supply Voltage: 1.8 V to 3.6 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: C8051F800DK
• Minimum Operating Temperature: - 55 C
• Package: 20QFN EP
• Device Core: 8051
• Family Name: C8051F8xx
• Maximum Speed: 25 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details
• Other names: 336-1799-5

C8051F80x-83x
23.2.3. Assigning Port I/O Pins to External Digital Event Capture Functions
External digital event capture functions can be used to trigger an interrupt or wake the device from a low
power mode when a transition occurs on a digital I/O pin. The digital event capture functions do not require
dedicated pins and will function on both GPIO pins (PnSKIP = 1) and pins in use by the Crossbar (PnSKIP
= 0). External digital event capture functions cannot be used on pins configured for analog I/O. Table 23.3
shows all available external digital event capture functions.
142
UART0, SPI0, SMBus,
SYSCLK, PCA0 (CEX0-2
and ECI), T0, or T1.
Any pin used for GPIO
Notes:
External Interrupt 0
External Interrupt 1
Port Match
Note: Port pins P1.4
1. The Crossbar will always assign UART0 pins to P0.4 and P0.5.
2. Port pins P1.4
Digital Function
Digital Function
Table 23.3. Port I/O Assignment for External Digital Event Capture Functions
–P1.7 are
–P1.7 are
Table 23.2. Port I/O Assignment for Digital Functions
not available on the 16-pin packages.
not available on the 16-pin packages.
Any Port pin available for assignment by the
Crossbar. This includes P0.0 - P1.7
have their PnSKIP bit set to 0.
Potentially Assignable Port Pins
Potentially Assignable Port Pins
Rev. 1.0
P0.0–P2.0
P0.0–P1.7
P0.0–P0.7
P0.0–P0.7
2
*
1
2
pins which
P0MASK, P0MAT
P1MASK, P1MAT
SFR(s) used for
SFR(s) used for
Assignment
XBR0, XBR1
Assignment
PnSKIP
IT01CF
IT01CF