C8051F930DK Silicon Laboratories Inc, C8051F930DK Datasheet - Page 215

• Manufacturer Part Number: C8051F930DK
• Description: KIT DEV C8051F920,F921,F930,F931
• Manufacturer: Silicon Laboratories Inc
• Type: MCUr

Specifications of C8051F930DK

• Contents: Target Board, Power Adapter, USB Debug Adapter, Cables, Batteries, and Software
• 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: C8051F920, F921, F930, F931
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1473

21.2.2. Assigning Port I/O Pins to Digital Functions
Any Port pins not assigned to analog functions may be assigned to digital functions or used as GPIO. Most
digital functions rely on the Crossbar for pin assignment; however, some digital functions bypass the
Crossbar in a manner similar to the analog functions listed above. Port pins used by these digital func-
tions and any Port pins selected for use as GPIO should have their corresponding bit in PnSKIP set
to 1. Table 21.2 shows all available digital functions and the potential mapping of Port I/O to each digital
function.
21.2.3. 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 even capture functions cannot be used on pins configured for analog I/O. Table 21.3
shows all available external digital event capture functions.
Digital Function
UART0, SPI1, SPI0, SMBus,
CP0 and CP1 Outputs, Sys-
tem Clock Output, PCA0,
Timer0 and Timer1 External
Inputs.
Any pin used for GPIO
External Memory Interface
Digital Function
External Interrupt 0
External Interrupt 1
Port Match
Table 21.3. Port I/O Assignment for External Digital Event Capture Functions
Table 21.2. Port I/O Assignment for Digital Functions
Note: The Crossbar will always assign UART0 and
Note: On C8051F931/21 devices Port Match is not
Crossbar. This includes P0.0–P2.6 pins which
Any Port pin available for assignment by the
SPI1 pins to fixed locations.
available on P1.6 or P1.7.
Potentially Assignable Port Pins
Potentially Assignable Port Pins
have their PnSKIP bit set to 0.
Rev. 1.1
P0.0–P2.6
P1.0–P2.6
P0.0–P0.7
P0.0–P0.7
P0.0–P1.7
C8051F93x-C8051F92x
XBR0, XBR1, XBR2
P0MASK, P0MAT
P1MASK, P1MAT
P0SKIP, P1SKIP,
SFR(s) used for
P1SKIP, P2SKIP
SFR(s) used for
Assignment
Assignment
EMI0CF
P2SKIP
IT01CF
IT01CF
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