c8051f912-gdi Silicon Laboratories, c8051f912-gdi Datasheet - Page 4

• Manufacturer Part Number: c8051f912-gdi
• Manufacturer: Silicon Laboratories

C8051F912-GDI
4
CNVSTR
XTAL1
XTAL2
AGND
IREF0
Name
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
P1.0
P1.1
P1.2
TX
RX
Physical
Number
Pad
Table 2.1. Pin Definitions for C8051F912-GDI (Continued)
31
30
29
28
26
25
24
19
18
17
D I/O or A
D I/O or A
D I/O or A
D I/O or A
D I/O or A
D I/O or A
D I/O or A
D I/O or
D I/O or
D I/O or
A Out
D Out
A Out
Type
A In
D In
A In
D In
D In
A In
A In
A In
In
G
In
In
In
In
In
In
Description
Port 0.1.
Optional Analog Ground.
Port 0.2. See Port I/O Section of the C8051F91x-C8051F90x data sheet
for a complete description.
External Clock Input. This pin is the external oscillator return for a crystal or
resonator.
Buffered SmaRTClock oscillator output.
Port 0.3.
External Clock Output. This pin is the excitation driver for an external crys-
tal or resonator.
External Clock Input. This pin is the external clock input in external CMOS
clock mode.
External Clock Input. This pin is the external clock input in capacitor or RC
oscillator configurations.
Port 0.4.
UART TX Pin.
Port 0.5.
UART RX Pin.
Port 0.6.
External Convert Start Input for ADC0.
Port 0.7.
IREF0 Output. See IREF Section of the C8051F91x-C8051F90x data
sheet for complete description.
Port 1.0.
May also be used as SCK for SPI1.
Port 1.1.
May also be used as MISO for SPI1.
Port 1.2.
May also be used as MOSI for SPI1.
Rev. 1.0