TMS320C2811 Datasheet

  • TMS320C2811

  • 具有片内 ROM 的 32 位数字信号控制器

  • 2601.82KB

  • 162页

  • TI

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TMS320F2810, TMS320F2812
DIGITAL SIGNAL PROCESSORS
SPRS174B 鈥?APRIL 2001 鈥?REVISED SEPTEMBER 2001
vector table mapping (continued)
Recommended Flow for F2810/F2812 Applications
Reset
(Power-on Reset or
Warm Reset)
PIE Disabled (ENPIE = 0)
VMAP = 1
OBJMODE = 0
AMODE = 0
M0M1MAP = 1
Used for Test Purposes Only
XMP/MC
input signal
= 0?鈥?/div>
Yes
Reset Vector Fetched
from Boot ROM
Branch into Bootloader
routines depending on
the state of GPIO Pins
No
(F2812 Only)
Reset Vector Fetched
from XINTF Vector Map
User Code Initializes:
OBJMODE and AMODE State鈥?/div>
CPU IER Register and INTM
VMAP State
MP/MC Status Bit露
Yes
User Code Initializes:
OBJMODE and AMODE State鈥?/div>
VMAP = 1?
PIE Enable (ENPIE = 1)
PIE Vector Table
PIEIERx Registers
CPU IER Register and INTM
No
Vectors (except for reset) will be
fetched from M0 Vector Map搂
Yes
(F2812 Only)
No
Vectors (except for reset) will be
fetched from XINTF Vector Map搂
Vectors (except for reset)
will be
fetched from PIE Vector Map搂
MP/MC
status bit =
0?露
Yes
Vectors (except for reset)
will be Fetched From
BROM Vector Map搂
鈥?The XMP/MC input signal is tied low internally on the F2810.
鈥?The compatibility operating mode of the F2810 and F2812 is determined by a combination of the OBJMODE and AMODE bits in Status
Register 1 (ST1):
Operating Mode
C28x Mode
C2xLP Source-Compatible
C27x Object-Compatible
OBJMODE
1
1
0
AMODE
0
1
0 (Default at reset)
搂 The reset vector is always fetched from either the BROM or XINTF vector map depending on the XMP/MC input signal.
露 The state of the XMP/MC signal is latched into the MP/MC bit at reset, it can then be modified by software.
Figure 7. Reset Flow Diagram
POST OFFICE BOX 1443
鈥?/div>
HOUSTON, TEXAS 77251鈥?443
37
PRODUCT PREVIEW
Using
Peripheral
Interrupts?
No

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