Datasheet

Peripheral
Registers
SPI-A,SCI-A
I/O
PF2
ClockEnables
ClockEnables
PCLKCR0/1/3
(SystemCtrlRegs)
LOSPCP
(SystemCtrlRegs)
LSPCLK
SYSCLKOUT
Peripheral
Registers
eCAP1
I/O
PF1
ClockEnables
ClockEnables
Peripheral
Registers
ePWM1/.../4
I/O
PF1
ClockEnables
ClockEnables
Peripheral
Registers
I2C-A
I/O
PF2
ClockEnables
ClockEnables
ADC
Registers
12-Bit ADC
16Ch
PF2
ClockEnables
PF0
ClockEnables
COMP
Registers
COMP1/2
PF1
ClockEnables
6
GPIO
Mux
Analog
GPIO
Mux
C28xCore
CLKIN
TMS320F28027, TMS320F28026, TMS320F28023, TMS320F28022
TMS320F28021, TMS320F28020, TMS320F280200
SPRS523J –NOVEMBER 2008–REVISED OCTOBER 2013 www.ti.com
Figure 3-9 shows the various clock domains that are discussed. Figure 3-10 shows the various clock
sources (both internal and external) that can provide a clock for device operation.
A. CLKIN is the clock into the CPU. It is passed out of the CPU as SYSCLKOUT (that is, CLKIN is the same frequency
as SYSCLKOUT).
Figure 3-9. Clock and Reset Domains
40 Functional Overview Copyright © 2008–2013, Texas Instruments Incorporated
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Product Folder Links: TMS320F28027 TMS320F28026 TMS320F28023 TMS320F28022 TMS320F28021
TMS320F28020 TMS320F280200