C8051F526-IMR Silicon Labs, C8051F526-IMR Datasheet - Page 159

• Manufacturer Part Number: C8051F526-IMR
• Description: 8-bit Microcontrollers - MCU 2KB 12ADC 125C LIN 10Pin MCU
• Manufacturer: Silicon Labs

Specifications of C8051F526-IMR

• Product Category: 8-bit Microcontrollers - MCU
• Rohs: yes
• Core: 8051
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 25 MHz
• Program Memory Size: 2 KB
• Data Ram Size: 256 B
• On-chip Adc: Yes
• Package / Case: DFN-10
• Mounting Style: SMD/SMT
• A/d Bit Size: 12 bit
• A/d Channels Available: 6
• Interface Type: SPI, UART
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 6
• Number Of Timers: 3
• On-chip Dac: No
• Processor Series: C8051
• Program Memory Type: Flash
• Factory Pack Quantity: 1500
• Supply Voltage - Max: 2.7 V, 5.25 V
• Supply Voltage - Min: 2 V, 2.7 V

SFR Definition 16.3. SPI0CKR: SPI0 Clock Rate
Bits7–0: SCR7–SCR0: SPI0 Clock Rate.
Example: If SYSCLK = 2 MHz and SPI0CKR = 0x04,
SCR7
R/W
Bit7
These bits determine the frequency of the SCK output when the SPI0 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 SPI0CKR is the 8-bit value held in the SPI0CKR register.
for 0 <= SPI0CKR <= 255
SCR6
f
SCK
R/W
Bit6
f
SCK
f
SCK
=
=
=
200kHz
------------------------- -
2
SCR5
------------------------------------------------ -
2
2000000
R/W
Bit5



4

SPI0CKR
SYSCLK
+
1

SCR4
R/W
Bit4
+
1

SCR3
Rev. 1.4
R/W
Bit3
SCR2
R/W
Bit2
C8051F52x/F53x
SCR1
R/W
Bit1
SFR Address: 0xA2
SCR0
R/W
Bit0
00000000
Reset Value
159