參數(shù)資料
型號: ID78K3
英文描述: ID78K3 Reference for PC-9801 and 9821 Series (Windows) and IBM PC/ATSeries (Windows) Ver.V1.20 | User's Manual[10/1995]
中文描述: ID78K3參考為PC - 9801和9821系列(Windows)和IBM的PC / ATSeries(Windows)中Ver.V1.20 |用戶手冊[10/1995]
文件頁數(shù): 82/109頁
文件大?。?/td> 1088K
代理商: ID78K3
Chapter 3 Advanced Use of ID78K0 3.2 Using External Sense Clips
70
3.2 Using External Sense Clips
External sense clips have various functions. They can be used to post notification of the in-
circuit emulator status or output 1-byte RAM data in real-time.
The use of external sense clips may enable essential processing which has not been possible
conventionally.
External sense clips No. 01 to 08 are provided. The debugger handles them as bits 0 to 7,
respectively.
External sense clip number
No.08
No.07
No.06
No.05
No.04
No.03
No.02
No.01
Debugger handles as:
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
When external sense clips are set to output mode, they must be pulled up using resistors. In
such a case, a voltage exceeding +15 V cannot be applied to the sense clips.
The tracer traces the potential difference between each external sense clip and GND, regardless
of whether the sense clips are set to input or output mode. The HC4050B (used as an input
buffer) determines whether the trace data for each external sense clip is 1 or 0.
The trace data for external sense clips can be used for event conditions, thus enabling the
setting of a wide range of event conditions.
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