參數(shù)資料
型號(hào): SAF-C868-1SR
廠商: INFINEON TECHNOLOGIES AG
元件分類: 微控制器/微處理器
英文描述: 8-BIT, 40 MHz, MICROCONTROLLER, PDSO38
封裝: PLASTIC, TSSOP-38
文件頁(yè)數(shù): 10/70頁(yè)
文件大小: 1067K
代理商: SAF-C868-1SR
C868
Data Sheet
18
V 0.2, 2002-01
Figure 7
The phases of the Bootstrap Loader
The serial communication is activated in phase B. Using a full duplex serial cable
(RS232), the MCU must be connected to the serial port of the host computer as shown
Figure 8
Bootstrap Loader Interface to the PC
Start
byte=A5
H?
No
Yes
Phase A
Bootstrap from
serial
EEPROM
Phase B
Init serial interface 0
and synchronize to
the host baud rate
Receive header
block from host
Select working
mode
Activate Mode 1
Execute custom
program in XRAM
Activate Mode 2
Execute custom
program in SRAM
Activate Mode 3
Load program from
serial EEPROM
to SRAM/XRAM
Activate mode 0
Load custom code
to SRAM/XRAM
Phase B, Phase II
Phase B, Phase I
Read serial
EEPROM (first byte)
PC
Host Computer
C868
Serial Cable
full duplex, RS232
Serial Interface
(asynchronous, 8N1)
Serial Interface,
UART Mode 1
(asynchronous, 8N1)
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