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參數(shù)資料
| 型號(hào)： | HMS99C58S |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 8-BIT SINGLE-CHIP MICROCONTROLLERS WITH EMBEDDED FLASH |
| 中文描述： | 8位單片機(jī)與嵌入式閃存微控制器 |
| 文件頁(yè)數(shù)： | 63/73頁(yè) |
| 文件大?。?/td> | 696K |
| 代理商： | HMS99C58S |
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HMS99C51S/52S/54S/56S/58S
Sep. 2004 Ver 1.01
59
Serial Protocol
This application note describes the Serial Protocol used to program the Flash code memory from MagnaChip
microcontrollers. Commands sent over the serial line are interpreted by the on-chip bootloader program.
This applied for HMS99C51S/52S/54S/56S/58S.
This protocol is a serial UART protocol.
Protocol Configuration
1. Physical Layer
The UART used to transmit information has the following configuration:
Character: 8-bit data
Parity: none
Stop: 1 bit
Flow control: none
Baudrate: autobaud is performed by the bootloader to compute the baudrate chosen by the host.
2. Frame Description
The Serial Protocol is based on the Intel Hex-type records.
Intel Hex records consist of ASCII characters used to represent hexadecimal values and are summarized below:
Record Mark
‘ : ’
Reclen
Load Offset
Record Type
Data or Info
Checksum
1 Byte
1 Byte
2 Byte
1 Byte
n Byte
1 Byte
UART
Bootloader
Serial Protocol
HMS99C51S/52S/54S/56S/58S
FLASH
ROM
HOST
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