參數(shù)資料
型號(hào): TMS0320F2810PBKAEP
廠商: Texas Instruments, Inc.
元件分類: 數(shù)字信號(hào)處理
英文描述: Digital Signal Processors
中文描述: 數(shù)字信號(hào)處理器
文件頁數(shù): 101/159頁
文件大?。?/td> 2084K
代理商: TMS0320F2810PBKAEP
Electrical Specifications
101
March 2004 Revised October 2004
SGUS051A
tw(RSL1)
th(XPLLDIS)
th(XMP/MC)
th(boot-mode)
(see Note D)
VDDIO, DD3VFL
VDDAn, DAIO
(3.3 V)
(See Note B)
XCLKIN
2.5 V
0.3 V
X1
XRS
XF/XPLLDIS
XMP/MC
Boot-Mode Pins
VDD, VDD1
(1.8 V (or 1.9 V))
XCLKOUT
I/O Pins
User-Code Dependent
User-Code Dependent
User-Code Dependent
Boot-ROM Execution Starts
Peripheral/GPIO Function
Based on Boot Code
GPIO Pins as Input
XPLLDIS Sampling
GPIOF14
XCLKIN/8 (See Note C)
GPIO Pins as Input (State Depends on Internal PU/PD)
tOSCST
(Don’t Care)
(Don’t Care)
User-Code Dependent
Address/Data/
Control
Address/Data Valid. Internal Boot-ROM Code Execution Phase
User-Code Execution Phase
NOTES: A. The state of the GPIO pins is undefined (i.e., they could be input or output) until the 1.8-V (or 1.9-V) supply reaches at least
1 V and 3.3-V supply reaches 2.5 V.
B. VDDAn VDDA1/VDDA2 and AVDDREFBG
C. Upon power up, SYSCLKOUT is XCLKIN/2 if the PLL is enabled. Since both the XTIMCLK and CLKMODE bits in the
XINTCNF2 register come up with a reset state of 1, SYSCLKOUT is further divided by 4 before it appears at XCLKOUT. This
explains why XCLKOUT = XCLKIN/8 during this phase.
D. After reset, the Boot ROM code executes instructions for 1260 SYSCLKOUT cycles (SYSCLKOUT = XCLKIN/2) and then
samples BOOT Mode pins. Based on the status of the Boot Mode pin, the boot code branches to destination memory or boot
code function in ROM. The BOOT Mode pins should be held high/low for at least 2520 XCLKIN cycles from boot ROM
execution time for proper selection of Boot modes.
If Boot ROM code executes after power-on conditions (in debugger environment), the Boot code execution time is based on
the current SYSCLKOUT speed. The SYSCLKOUT will be based on user environment and could be with or without PLL
enabled.
td(EX)
See NOTE
tsu(XPLLDIS)
Figure 69. Power-on Reset in Microcomputer Mode (XMP/MC = 0) (See Note A)
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