參數(shù)資料
型號(hào)： TMX320F28044ZGMS
廠商： Texas Instruments, Inc.
元件分類： 數(shù)字信號(hào)處理
英文描述： Digital Signal Processor
中文描述： 數(shù)字信號(hào)處理器
文件頁(yè)數(shù)： 42/107頁(yè)
文件大?。?/td> 784K
代理商： TMX320F28044ZGMS
www.ti.com
INT1
to
INT12
INT14
C28x
TINT2
TINT0
PIE
CPU-TIMER 0
CPU-TIMER 2
(Reserved for
DSP/BIOS)
INT13
TINT1
CPU-TIMER 1
(Reserved for TI
system functions)
XINT13
TMS320F28044
Digital Signal Processor
SPRS357B–AUGUST 2006–REVISED MAY 2007
A.
B.
C.
The timer registers are connected to the memory bus of the C28x processor.
The timing of the timers is synchronized to SYSCLKOUT of the processor clock.
While TIMER1 is reserved, INT13 is not reserved and the user can use XINT13 connected to INT13.
Figure 4-2. CPU-Timer Interrupt Signals and Output Signal
The general operation of the timer is as follows: The 32-bit counter register "TIMH:TIM" is loaded with the
value in the period register "PRDH:PRD". The counter register decrements at the SYSCLKOUT rate of the
C28x. When the counter reaches 0, a timer interrupt output signal generates an interrupt pulse. The
registers listed in
Table 4-1
are used to configure the timers. For more information, see the
TMS320x280x,
2801x, 2804x System Control and Interrupts Reference Guide
(literature number
SPRU712
).
Table 4-1. CPU-Timers 0, 1, 2 Configuration and Control Registers
NAME
ADDRESS
0x0C00
0x0C01
0x0C02
0x0C03
0x0C04
0x0C05
0x0C06
0x0C07
0x0C08
0x0C09
0x0C0A
0x0C0B
0x0C0C
0x0C0D
0x0C0E
0x0C0F
0x0C10
0x0C11
0x0C12
0x0C13
0x0C14
0x0C15
SIZE (x16)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
DESCRIPTION
TIMER0TIM
TIMER0TIMH
TIMER0PRD
TIMER0PRDH
TIMER0TCR
reserved
TIMER0TPR
TIMER0TPRH
TIMER1TIM
TIMER1TIMH
TIMER1PRD
TIMER1PRDH
TIMER1TCR
reserved
TIMER1TPR
TIMER1TPRH
TIMER2TIM
TIMER2TIMH
TIMER2PRD
TIMER2PRDH
TIMER2TCR
reserved
CPU-Timer 0, Counter Register
CPU-Timer 0, Counter Register High
CPU-Timer 0, Period Register
CPU-Timer 0, Period Register High
CPU-Timer 0, Control Register
CPU-Timer 0, Prescale Register
CPU-Timer 0, Prescale Register High
CPU-Timer 1, Counter Register
CPU-Timer 1, Counter Register High
CPU-Timer 1, Period Register
CPU-Timer 1, Period Register High
CPU-Timer 1, Control Register
CPU-Timer 1, Prescale Register
CPU-Timer 1, Prescale Register High
CPU-Timer 2, Counter Register
CPU-Timer 2, Counter Register High
CPU-Timer 2, Period Register
CPU-Timer 2, Period Register High
CPU-Timer 2, Control Register
Peripherals
42
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