c8051f410 Silicon Laboratories, c8051f410 Datasheet - Page 225

• Manufacturer Part Number: c8051f410
• Description: 2.0 V, 32/16 Kb Flash, Smartclock, 12-bit Adc
• Manufacturer: Silicon Laboratories

Bits 7–0: SCR7–SCR0: SPI0 Clock Rate.
Example: If SYSCLK = 2 MHz and SPI0CKR = 0x04,
f
SCK
SCR7
f
SCK
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
200kHz
f
SCK
------------------------- -
2
2000000
SCR6
×
R/W
Bit6
(
=
4
+
------------------------------------------------ -
2
SFR Definition 23.3. SPI0CKR: SPI0 Clock Rate
×
1
)
(
SPI0CKR
SCR5
SYSCLK
R/W
Bit5
SCR4
+
R/W
Bit4
1
)
Rev. 1.0
SCR3
R/W
Bit3
SCR2
R/W
Bit2
C8051F410/1/2/3
SCR1
R/W
Bit1
SFR Address: 0xA2
SCR0
R/W
Bit0
00000000
Reset Value
225