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參數(shù)資料
| 型號： | XA-G49 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | XA 16-bit microcontroller family 64K FLASH/2K RAM, watchdog, 2 UARTs |
| 中文描述： | 的XA 16位微控制器系列64K的FLASH/2K內(nèi)存，看門狗，2個UART |
| 文件頁數(shù)： | 14/42頁 |
| 文件大?。?/td> | 299K |
| 代理商： | XA-G49 |
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Philips Semiconductors
Preliminary specification
XA-G49
XA 16-bit microcontroller family
64K Flash/2K RAM, watchdog, 2 UARTs
2000 Apr 03
14
Table 2. Intel-Hex Records Used by In-System Programming
RECORD TYPE
00 or 80
COMMAND/DATA FUNCTION
Data Record
:nnaaaa00dd....ddcc
Where:
Nn
Aaaa
dd....dd
cc
Example:
:10008000AF5F67F0602703E0322CFA92007780C3FD
= number of bytes (hex) in record
= memory address of first byte in record
= data bytes
= checksum
01 or 81
End of File (EOF), no operation
:xxxxxx01cc
Where:
xxxxxx
cc
Example:
:00000001FF
Miscellaneous Write Functions
:nnxxxx83ffssddcc
Where:
nn
xxxx
83
ff
ss
dd
cc
Subfunction Code = 01 (Erase Blocks)
ff = 01
ss = block number in bits 7:5, Bits 4:0 = zeros
block 0 : ss = 00h
block 1 : ss = 20h
block 2 : ss = 40h
block 3 : ss = 80h
block 4 : ss = C0h
Example:
:0200008301203C erase block 1
Subfunction Code = 04 (Erase Boot Vector and Status Byte)
ff = 04
ss = don’t care
dd = don’t care
Example:
:010000830478 erase boot vector and status byte
Subfunction Code = 05 (Program Security Bits)
ff = 05
ss = 00 program security bit 1 (inhibit writing to FLASH)
01 program security bit 2 (inhibit FLASH verify)
02 program security bit 3 (disable external memory)
Example:
:02000083050175 program security bit 2
Subfunction Code = 06 (Program Status Byte or Boot Vector)
ff = 06
ss = 00 program status byte
01 program boot vector
NOTE:
Only four bits of these Special Cells may be programmed at one time.
Example:
:020000830601FC78 program boot vector to FC00h
= required field, but value is a “don’t care”
= checksum
83
= number of bytes (hex) in record
= required field, but value is a “don’t care”
= Write Function
= subfunction code
= selection code
= data input (as needed)
= checksum
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