Borrow
Reset
Timer Reload
SYSCLKOUT
TCR.4
(Timer Start Status)
TINT
16-Bit Timer Divide-Down
TDDRH:TDDR
32-Bit Timer Period
PRDH:PRD
32-Bit Counter
TIMH:TIM
16-Bit Prescale Counter
PSCH:PSC
Borrow
TMS320F2809, TMS320F2808, TMS320F2806
TMS320F2802, TMS320F2801, TMS320C2802
TMS320C2801, TMS320F28016, TMS320F28015
www.ti.com
SPRS230L–OCTOBER 2003–REVISED DECEMBER 2009
4 Peripherals
The integrated peripherals of the 280x are described in the following subsections:
• Three 32-bit CPU-Timers
• Up to six enhanced PWM modules (ePWM1, ePWM2, ePWM3, ePWM4, ePWM5, ePWM6)
• Up to four enhanced capture modules (eCAP1, eCAP2, eCAP3, eCAP4)
• Up to two enhanced QEP modules (eQEP1, eQEP2)
• Enhanced analog-to-digital converter (ADC) module
• Up to two enhanced controller area network (eCAN) modules (eCAN-A, eCAN-B)
• Up to two serial communications interface modules (SCI-A, SCI-B)
• Up to four serial peripheral interface (SPI) modules (SPI-A, SPI-B, SPI-C, SPI-D)
• Inter-integrated circuit module (I2C)
• Digital I/O and shared pin functions
4.1 32-Bit CPU-Timers 0/1/2
There are three 32-bit CPU-timers on the 280x devices (CPU-TIMER0/1/2).
CPU-Timer 0 and CPU-Timer 1 can be used in user applications. Timer 2 is reserved for DSP/BIOS™.
These timers are different from the timers that are present in the ePWM modules.
NOTE
If the application is not using DSP/BIOS, then CPU-Timer 2 can be used in the
application.
Figure 4-1. CPU-Timers
Copyright © 2003–2009, Texas Instruments Incorporated Peripherals 53
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TMS320C2801 TMS320F28016 TMS320F28015