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Title: z2005122812256 Download
  • Category:
  • SCM
  • Tags:
  • [PPT]
  • File Size:
  • 90.72kb
  • Update:
  • 2008-10-13
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  • 0 Times
  • Uploaded by:
  • yxzhoujingang
 Description: 8253 initialization procedures examples : Example 1 : Select counters on the 2nd, in three ways. Counting for the initial 533H (2 bytes), a binary counting. Initialization of its procedures for MOV DX, 307H; I ordered MOV AL, 10110110B; on the 2nd Counter initialize command word OUT DX, AL; write commands Register MOV DX, 306H; data on the 2nd Counter I MOV AX, 533H; Counting initial OUT DX, AL; low-byte sent to the 2nd Counter MOV AL, AH; With a high-byte send AL OUT DX, AL; evacuations high byte counter to the 2nd
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