參數(shù)資料
型號(hào): TMS320C6713BGDPA200
廠商: Texas Instruments, Inc.
元件分類: 數(shù)字信號(hào)處理
英文描述: FLOATING-POINT DIGITAL SIGNAL PROCESSORS
中文描述: 浮點(diǎn)數(shù)字信號(hào)處理器
文件頁數(shù): 90/150頁
文件大?。?/td> 2039K
代理商: TMS320C6713BGDPA200
TMS320C6713, TMS320C6713B
FLOATING-POINT DIGITAL SIGNAL PROCESSORS
SPRS186I
DECEMBER 2001
REVISED MAY 2004
90
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251
1443
31
16
15
14
13
12
11
10
9
8
Reserved
Enable or
Non-Enabled
Interrupt Wake
Enabled
Interrupt Wake
PD3
PD2
PD1
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
7
0
Legend:
R/W
x = Read/write reset value
NOTE: The shadowed bits are not part of the power-down logic discussion and therefore are not covered here. For information on these other
bit fields in the CSR register, see the
TMS320C6000 CPU and Instruction Set Reference Guide
(literature number SPRU189).
Figure 21. PWRD Field of the CSR Register
A delay of up to nine clock cycles may occur after the instruction that sets the PWRD bits in the CSR before the
PD mode takes effect. As best practice, NOPs should be padded after the PWRD bits are set in the CSR to account
for this delay.
If PD1 mode is terminated by a non-enabled interrupt, the program execution returns to the instruction where PD1
took effect. If PD1 mode is terminated by an enabled interrupt, the interrupt service routine will be executed first,
then the program execution returns to the instruction where PD1 took effect. In the case with an enabled interrupt,
the GIE bit in the CSR and the NMIE bit in the interrupt enable register (IER) must also be set in order for the
interrupt service routine to execute; otherwise, execution returns to the instruction where PD1 took effect upon
PD1 mode termination by an enabled interrupt.
PD2 and PD3 modes can only be aborted by device reset. Table 45 summarizes all the power-down modes.
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