參數(shù)資料
型號: TMDXCNCD28069ISO
廠商: Texas Instruments
文件頁數(shù): 148/174頁
文件大小: 0K
描述: EVAL PICCOLO CONTROLCARD
標(biāo)準(zhǔn)包裝: 1
系列: TMS320F2806x, Piccolo™, C2000™
主要目的: 接口,RS232,GPIO
嵌入式: 是,MCU,32 位
已用 IC / 零件: TMS320F2806x
已供物品:
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)
SPRS698D – NOVEMBER 2010 – REVISED DECEMBER 2012
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. Table 5-11 shows the interrupts used by 2806x
devices.
The TRAP #VectorNumber instruction transfers program control to the interrupt service routine
corresponding to the vector specified. TRAP #0 attempts to transfer program control to the address
pointed to by the reset vector. The PIE vector table does not, however, include a reset vector. Therefore,
TRAP #0 should not be used when the PIE is enabled. Doing so will result in undefined behavior.
When the PIE is enabled, TRAP #1 through TRAP #12 will transfer program control to the interrupt service
routine corresponding to the first vector within the PIE group. For example: TRAP #1 fetches the vector
from INT1.1, TRAP #2 fetches the vector from INT2.1, and so forth.
Figure 5-11. Multiplexing of Interrupts Using the PIE Block
Copyright 2010–2012, Texas Instruments Incorporated
Peripheral and Electrical Specifications
75
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