參數(shù)資料
型號: SM320F2812HFGM
廠商: TEXAS INSTRUMENTS INC
元件分類: 數(shù)字信號處理
英文描述: 16-BIT, 150 MHz, OTHER DSP, CQFP172
封裝: NCTB, CERAMIC, QFP-172
文件頁數(shù): 83/147頁
文件大小: 1721K
代理商: SM320F2812HFGM
Functional Overview
40
December 2004
SGUS053
Eight PIE block interrupts are grouped into one CPU interrupt. In total, 12 CPU interrupt groups, with
8 interrupts per group equals 96 possible interrupts. On the F2812, 45 of these are used by peripherals as
shown in Table 310.
INT12
MUX
INT11
INT2
INT1
CPU
(Enable)
(Flag)
INTx
INTx.8
PIEIERx(8:1)
PIEIFRx(8:1)
MUX
INTx.7
INTx.6
INTx.5
INTx.4
INTx.3
INTx.2
INTx.1
From
Peripherals or
External
Interrupts
(Enable)
(Flag)
IER(12:1)
IFR(12:1)
Global
Enable
INTM
1
0
PIEACKx
(Enable/Flag)
Figure 35. Multiplexing of Interrupts Using the PIE Block
Table 310. PIE Peripheral Interrupts
CPU
PIE INTERRUPTS
CPU
INTERRUPTS
INTx.8
INTx.7
INTx.6
INTx.5
INTx.4
INTx.3
INTx.2
INTx.1
INT1
WAKEINT
(LPM/WD)
TINT0
(TIMER 0)
ADCINT
(ADC)
XINT2
XINT1
reserved
PDPINTB
(EV-B)
PDPINTA
(EV-A)
INT2
reserved
T1OFINT
(EV-A)
T1UFINT
(EV-A)
T1CINT
(EV-A)
T1PINT
(EV-A)
CMP3INT
(EV-A)
CMP2INT
(EV-A)
CMP1INT
(EV-A)
INT3
reserved
CAPINT3
(EV-A)
CAPINT2
(EV-A)
CAPINT1
(EV-A)
T2OFINT
(EV-A)
T2UFINT
(EV-A)
T2CINT
(EV-A)
T2PINT
(EV-A)
INT4
reserved
T3OFINT
(EV-B)
T3UFINT
(EV-B)
T3CINT
(EV-B)
T3PINT
(EV-B)
CMP6INT
(EV-B)
CMP5INT
(EV-B)
CMP4INT
(EV-B)
INT5
reserved
CAPINT6
(EV-B)
CAPINT5
(EV-B)
CAPINT4
(EV-B)
T4OFINT
(EV-B)
T4UFINT
(EV-B)
T4CINT
(EV-B)
T4PINT
(EV-B)
INT6
reserved
MXINT
(McBSP)
MRINT
(McBSP)
reserved
SPITXINTA
(SPI)
SPIRXINTA
(SPI)
INT7
reserved
INT8
reserved
INT9
reserved
ECAN1INT
(CAN)
ECAN0INT
(CAN)
SCITXINTB
(SCI-B)
SCIRXINTB
(SCI-B)
SCITXINTA
(SCI-A)
SCIRXINTA
(SCI-A)
INT10
reserved
INT11
reserved
INT12
reserved
Out of the 96 possible interrupts, 45 interrupts are currently used. the remaining interrupts are reserved for future devices. However, these
interrupts can be used as software interrupts if they are enabled at the PIEIFRx level.
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