SI1010 Datasheet, PDF (33/384 Pages) Silicon Laboratories – Ultra Low Power, 16/8 kB, 12/10-Bit ADC MCU with Integrated 240-960 MHz EZRadioPRO Transceiver

Si1010/1/2/3/4/5
Name
RST/
C2CK
P2.7/
C2D
XTAL3
XTAL4
P0.0
V_REF
P0.1
AGND
P0.2
XTAL1
P0.3
XTAL2
Table 3.1. Pin Definitions for the Si1010/1/2/3/4/5 (Continued)
Pin Number
Si1010/1
Si1012/3
Si1014/5
39
42
Type
D I/O
Description
Device Reset. Open-drain output of internal POR or V_DD
monitor. An external source can initiate a system reset by
driving this pin low for at least 15 µs. A 1–5 k pullup to
VDD_MCU is recommended. See Reset Sources section
for a complete description.
D I/O Clock signal for the C2 Debug Interface.
40
1
D I/O Port 2.7. This pin can only be used as GPIO. The Crossbar
cannot route signals to this pin and it cannot be configured
as an analog input. See Port I/O section for a complete
description.
D I/O Bi-directional data signal for the C2 Debug Interface.
1
3
A In SmaRTClock Oscillator Crystal Input.
See Section 20 for a complete description.
42
2
A Out SmaRTClock Oscillator Crystal Output.
See Section 20 for a complete description.
36
36 D I/O or Port 0.0. See Port I/O section for a complete description.
A In
A In
A Out
External V_REF Input.
Internal V_REF Output. External V_REF decoupling capacitors
are recommended. See Voltage Reference section.
35
35 D I/O or Port 0.1. See Port I/O Section for a complete description.
A In
G _{Optional Analog Ground. See VREF chapter.}
34
34 D I/O or Port 0.2. See Port I/O Section for a complete description.
A In
A In External Clock Input. This pin is the external oscillator
return for a crystal or resonator. See Oscillator section.
33
33 D I/O or Port 0.3. See Port I/O Section for a complete description.
A In
A Out
D In
A In
External Clock Output. This pin is the excitation driver for an
external crystal 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.
See Oscillator section for complete details.
Rev. 1.0
33