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参数资料
型号： ST10F269DIETR
厂商： STMICROELECTRONICS
元件分类： 微控制器/微处理器
英文描述： 16-BIT, FLASH, 32 MHz, MICROCONTROLLER, UUC
封装： DIE
文件页数： 88/161页
文件大小： 1595K
代理商： ST10F269DIETR
ST10F269-T3
32/160
Figure 7 : Memory Configuration after Reset
5.6.3 - Loading the Startup Code
After sending the identification Byte the BSL
enters a loop to receive 32 Bytes via ASC0. These
Byte
are
stored
sequentially
into
locations
00’FA40h through 00’FA5Fh of the internal RAM.
So up to 16 instructions may be placed into the
RAM area. To execute the loaded code the BSL
then jumps to location 00’FA40h, which is the first
loaded instruction.
The
bootstrap
loading
sequence
is
now
terminated, the ST10F269-T3 remains in BSL
mode, however. Most probably the initially loaded
routine will load additional code or data, as an
average
application
is
likely
to
require
substantially more than 16 instructions. This
second
receive
loop
may
directly
use
the
pre-initialized interface ASC0 to receive data and
store it to arbitrary user-defined locations.
This second level of loaded code may be the final
application code. It may also be another, more
sophisticated,
loader
routine
that
adds
a
transmission protocol to enhance the integrity of
the loaded code or data. It may also contain a
code
sequence
to
change
the
system
configuration and enable the bus interface to store
the received data into external memory.
This process may go through several iterations or
may directly execute the final application. In all
cases the ST10F269-T3 will still run in BSL mode,
that means with the watchdog timer disabled and
limited access to the internal Flash area.
All code fetches from the internal Flash area
(00’0000h...00’7FFFh or 01’0000h...01’7FFFh, if
mapped to segment 1) are redirected to the
special Boot-ROM. Data fetches access will
access
the
internal
Boot-ROM
of
the
ST10F269-T3, if any is available, but will return
undefined data on ROMless devices.
5.6.4 - Exiting Bootstrap Loader Mode
In order to execute a program in normal mode, the
BSL
mode
must
be
terminated
first.
The
ST10F269-T3 exits BSL mode upon a software
reset (ignores the level on P0L.4) or a hardware
reset (P0L.4 must be high). After a reset the
ST10F269-T3 will start executing from location
00’0000h of the internal Flash or the external
memory, as programmed via pin EA.
16M Bytes
BSL mode active
Yes (P0L.4=’0’)
No (P0L.4=’1’)
EA pin
High
Low
Access to application
Code fetch from internal
Flash area
Test-Flash access
User Flash access
Data fetch from internal
Flash area
User Flash access
IRAM
1
0
User
Flash
Test
Flash
Segment
2
255
Access to:
external
bus
disabled
internal
enabled
Flash
1
0
User
Flash
Test
Flash
Segment
2
255
Access to:
external
bus
enabled
internal
enabled
Flash
IRAM
1
0
User
Flash
Segment
2
255
Access:
depends on
reset config
EA, Port0
depends on
reset config
EA, Port0
IRAM
相关PDF资料
PDF描述
ST10F269Z2Q3 16-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP144
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相关代理商/技术参数
参数描述
ST10F269-DP 功能描述:16位微控制器 - MCU 16-bit MCU MAC 256 Kbyte Flash RoHS:否 制造商:Texas Instruments 核心:RISC 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT
ST10F269-DPB 功能描述:16位微控制器 - MCU 16-bit MCU MAC 256 Kbyte Flash RoHS:否 制造商:Texas Instruments 核心:RISC 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT
ST10F269-DPR 功能描述:16位微控制器 - MCU 16Bit MCU 256K BYTE FLASH,12K BYTE RAM RoHS:否 制造商:Texas Instruments 核心:RISC 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT
ST10F269DT3 功能描述:16位微控制器 - MCU 16Bit MCU 256K BYTE FLASH,12K BYTE RAM RoHS:否 制造商:Texas Instruments 核心:RISC 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT
ST10F269DTR3 功能描述:16位微控制器 - MCU 16-bit MCU MAC unit 256 Kbyte Flash RoHS:否 制造商:Texas Instruments 核心:RISC 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT
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