SI1005-C-GM Silicon Laboratories Inc, SI1005-C-GM Datasheet - Page 188

• Manufacturer Part Number: SI1005-C-GM
• Description: IC TXRX MCU + EZRADIOPRO
• Manufacturer: Silicon Laboratories Inc

Specifications of SI1005-C-GM

• Package / Case: 42-QFN
• Frequency: 240MHz ~ 960MHz
• Data Rate - Maximum: 256kbps
• Modulation Or Protocol: FSK, GFSK, OOK
• Applications: General Purpose
• Power - Output: 13dBm
• Sensitivity: -121dBm
• Voltage - Supply: 0.9 V ~ 1.8 V
• Current - Receiving: 18.5mA
• Current - Transmitting: 30mA
• Data Interface: PCB, Surface Mount
• Memory Size: 32kB 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: 13 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: 32 KB
• Data Ram Size: 4352 B
• Supply Current (max): 4.1 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Operating Temperature: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1875-5

Si1000/1/2/3/4/5
SFR Definition 19.2. OSCICN: Internal Oscillator Control
SFR Page = 0x0; SFR Address = 0xB2
Note: It is recommended to use read-modify-write operations such as ORL and ANL to set or clear the enable bit of
this register.
SFR Definition 19.3. OSCICL: Internal Oscillator Calibration
SFR Page = 0x0; SFR Address = 0xB3
Note: If the Precision Internal Oscillator is selected as the system clock, the following procedure should be used when
188
Name
Reset
Name
Reset
Type
Type
Bit
5:0
Bit
6:0
Bit
Bit
7
6
7
changing the value of the internal oscillator calibration bits. 
1. Switch to a different clock source. 
2. Disable the oscillator by writing OSCICN.7 to 0. 
3. Change OSCICL to the desired setting. 
4. Enable the oscillator by writing OSCICN.7 to 1.
Reserved Read = 001111b. Must Write 001111b.
IOSCEN
IOSCEN
OSCICL
IFRDY
Name
Name
SSE
SSE
R/W
R/W
7
0
7
0
Internal Oscillator Enable.
0: Internal oscillator disabled.
1: Internal oscillator enabled.
Internal Oscillator Frequency Ready Flag .
0: Internal oscillator is not running at its programmed frequency.
1: Internal oscillator is running at its programmed frequency.
Spread Spectrum Enable .
0: Spread Spectrum clock dithering disabled.
1: Spread Spectrum clock dithering enabled.
Internal Oscillator Calibration .
Factory calibrated to obtain a frequency of 24.5 MHz. Incrementing this register decreases the
oscillator frequency and decrementing this register increases the oscillator frequency. The
step size is approximately 1% of the calibrated frequency. The recommended calibration fre-
quency range is between 16 and 24.5 MHz.
IFRDY
Varies
R
R
6
0
6
Varies
R/W
R/W
5
0
5
Varies
R/W
R/W
Rev. 1.0
4
0
4
OSCICL
Function
Function
Varies
R/W
R/W
3
Reserved
1
3
[6:0]
[5:0]
Varies
R/W
R/W
2
1
2
Varies
R/W
R/W
1
1
1
Varies
R/W
R/W
0
1
0