C8051F902-GU Silicon Laboratories Inc, C8051F902-GU Datasheet - Page 265

• Manufacturer Part Number: C8051F902-GU
• Description: IC MCU 8BIT 8KB FLASH 24QSOP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F9xxr

Specifications of C8051F902-GU

• Program Memory Type: FLASH
• Program Memory Size: 8KB (8K x 8)
• Package / Case: 24-QSOP
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 16
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 0.9 V ~ 3.6 V
• Data Converters: A/D 15x10/12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: C8051F9x
• Core: 8051
• Data Ram Size: 768 B
• Interface Type: UART
• Maximum Clock Frequency: 25 MHz
• Number Of Timers: 4
• Operating Supply Voltage: 0.9 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: C8051F912DK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12 bit
• Package: 24QSOP
• Device Core: 8051
• Family Name: C8051F90x
• Maximum Speed: 25 MHz
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 16
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1849-5

SFR Definition 24.3. SPInCKR: SPI Clock Rate
SFR Addresses: SPI0CKR = 0xA2, SPI1CKR = 0x85 
SFR Pages: SPI0CKR = 0x0, SPI1CKR = 0x0
Name
Reset
Bit
7:0
Type
Bit
Name
SCRn
7
0
SPI Clock Rate.
These bits determine the frequency of the SCK output when the SPI module is
configured for master mode operation. The SCK clock frequency is a divided
version of the system clock, and is given in the following equation, where SYSCLK
is the system clock frequency and SPInCKR is the 8-bit value held in the SPInCKR
register.
for 0 <= SPI0CKR <= 255
Example: If SYSCLK = 2 MHz and SPInCKR = 0x04,
f
f
f
SCK
SCK
SCK
6
0
=
=
=
---------------------------------------------------------- -
2
------------------------- -
2
200kHz
2000000




5
0
SPInCKR[7:0]
4
+
SYSCLK
1

Rev. 1.0
4
0
SCRn[7:0]
R/W
+
C8051F91x-C8051F90x
1

Function
3
0
2
0
1
0
0
0
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