SI1000-C-GM Silicon Laboratories Inc, SI1000-C-GM Datasheet - Page 342
![IC TXRX MCU + EZRADIOPRO](/photos/14/21/142131/42-qfn-series_sml.jpg)
SI1000-C-GM
Manufacturer Part Number
SI1000-C-GM
Description
IC TXRX MCU + EZRADIOPRO
Manufacturer
Silicon Laboratories Inc
Specifications of SI1000-C-GM
Package / Case
42-QFN
Frequency
240MHz ~ 960MHz
Data Rate - Maximum
256kbps
Modulation Or Protocol
FSK, GFSK, OOK
Applications
General Purpose
Power - Output
20dBm
Sensitivity
-121dBm
Voltage - Supply
1.8 V ~ 3.6 V
Current - Receiving
18.5mA
Current - Transmitting
85mA
Data Interface
PCB, Surface Mount
Memory Size
64kB Flash, 4kB RAM
Antenna Connector
PCB, Surface Mount
Number Of Receivers
1
Number Of Transmitters
1
Wireless Frequency
240 MHz to 960 MHz
Interface Type
UART, SMBus, SPI, PCA
Output Power
20 dBm
Operating Supply Voltage
0.9 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Maximum Supply Current
4.1 mA
Minimum Operating Temperature
- 40 C
Modulation
FSK, GFSK, OOK
Protocol Supported
C2, SMBus
Core
8051
Program Memory Type
Flash
Program Memory Size
64 KB
Data Ram Size
4352 B
Supply Current (max)
4.1 mA
Cpu Family
Si100x
Device Core
8051
Device Core Size
8b
Frequency (max)
25MHz
Total Internal Ram Size
4.25KB
# I/os (max)
22
Number Of Timers - General Purpose
4
Operating Supply Voltage (typ)
2.5/3.3V
Operating Supply Voltage (max)
3.6V
Operating Supply Voltage (min)
1.8V
On-chip Adc
18-chx10-bit
Instruction Set Architecture
CISC
Mounting
Surface Mount
Pin Count
42
Package Type
QFN EP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Operating Temperature
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1881-5
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
SI1000-C-GM
Manufacturer:
FSC
Quantity:
1 000
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Si1000/1/2/3/4/5
27.2.3. Comparator 0/SmaRTClock Capture Mode
The Capture Mode in Timer 2 allows either Comparator 0 or the SmaRTClock period to be measured
against the system clock or the system clock divided by 12. Comparator 0 and the SmaRTClock period can
also be compared against each other. Timer 2 Capture Mode is enabled by setting TF2CEN to 1. Timer 2
should be in 16-bit auto-reload mode when using Capture Mode.
When Capture Mode is enabled, a capture event will be generated either every Comparator 0 rising edge
or every 8 SmaRTClock clock cycles, depending on the T2XCLK1 setting. When the capture event occurs,
the
(TMR2RLH:TMR2RLL) and the TF2H flag is set (triggering an interrupt if Timer 2 interrupts are enabled).
By recording the difference between two successive timer capture values, the Comparator 0 or SmaRT-
Clock period can be determined with respect to the Timer 2 clock. The Timer 2 clock should be much faster
than the capture clock to achieve an accurate reading.
For example, if T2ML = 1b, T2XCLK1 = 0b, and TF2CEN = 1b, Timer 2 will clock every SYSCLK and cap-
ture every SmaRTClock clock divided by 8. If the SYSCLK is 24.5 MHz and the difference between two
successive captures is 5984, then the SmaRTClock clock is as follows:
24.5 MHz/(5984/8) = 0.032754 MHz or 32.754 kHz.
This mode allows software to determine the exact SmaRTClock frequency in self-oscillate mode and the
time between consecutive Comparator 0 rising edges, which is useful for detecting changes in the capaci-
tance of a Touch Sense Switch.
342
SmaRTClock/8
SmaRTClock/8
contents
Comparator 0
SYSCLK/12
Comparator 0
SYSCLK
of
T2XCLK[1:0]
T2XCLK1
Timer
X0
01
11
0
1
Figure 27.6. Timer 2 Capture Mode Block Diagram
M
T
H
3
2
M
T
3
L
CKCON
M
T
H
2
(TMR2H:TMR2L)
M
T
0
1
2
L
M
T
1
M
T
0
S
C
A
1
TF2CEN
S
C
A
0
TR2
Rev. 1.0
Capture
are
TCLK
loaded
TMR2RLL TMR2RLH
TMR2L
into
TMR2H
the
Timer 2
T2XCLK1
T2XCLK0
TF2CEN
T2SPLIT
TF2LEN
TF2H
TF2L
TR2
reload
registers
Interrupt
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