![HP 16501A LOGIC Programmer'S Manual Download Page 49](http://html.mh-extra.com/html/hp/16501a-logic/16501a-logic_programmers-manual_156275049.webp)
Extended Interface with Hardware Handshake
With the extended interface, both the software and the hardware can control
the data flow between the Logic Analysis System and the controller. The
Logic Analysis System uses the following connections on its RS-232-C
interface for extended interface communication:
•
Pin 5 SGND (Signal Ground)
•
Pin 3 TD (Transmit Data from Logic Analysis System)
•
Pin 2 RD (Receive Data into Logic Analysis System)
The additional lines you use depends on your controller’s implementation of
the extended hardwire interface.
•
Pin 7 RTS (Request To Send) is an output from the Logic Analysis
System which can be used to control incoming data flow.
•
Pin 8 CTS (Clear To Send) is an input to the Logic Analysis System
which controls data flow from the Logic Analysis System.
•
Pin 6 DSR (Data Set Ready) is an input to the Logic Analysis System
which controls data flow from the Logic Analysis System within two bytes.
•
Pin 1 DCD (Data Carrier Detect) is an input to the Logic Analysis
System which controls data flow from the Logic Analysis System within
two bytes.
•
Pin 4 DTR (Data Terminal Ready) is an output from the Logic Analysis
System which is enabled as long as the Logic Analysis System is turned on.
The TD (Transmit Data) line from the Logic Analysis System must connect to
the RD (Receive Data) line on the controller. Likewise, the RD line from the
Logic Analysis System must connect to the TD line on the controller.
The RTS (Request To Send) is an output from the Logic Analysis System
which can be used to control incoming data flow. A true on the RTS line
allows the controller to send data and a false signals a request for the
controller to disable data transmission.
The CTS (Clear To Send), DSR (Data Set Ready), and DCD (Data Carrier
Detect) lines are inputs to the Logic Analysis System, which control data flow
from the Logic Analysis System. Internal pull-up resistors in the Logic
Analysis System assure the DCD and DSR lines remain high when they are
not connected. If DCD or DSR are connected to the controller, the controller
must keep these lines along with the CTS line high to enable the Logic
Analysis System to send data to the controller. A low on any one of these
Programming Over RS-232-C
Extended Interface with Hardware Handshake
3–5
Summary of Contents for 16501A LOGIC
Page 2: ...ii ...
Page 12: ...Contents 8 ...
Page 14: ......
Page 15: ...1 Introduction to Programming ...
Page 38: ...1 24 ...
Page 39: ...2 Programming Over HP IB ...
Page 45: ...3 Programming Over RS 232 C ...
Page 55: ...4 Programming Over LAN ...
Page 68: ...4 14 ...
Page 69: ...5 Programming and Documentation Conventions ...
Page 81: ...6 Message Communication and System Functions ...
Page 91: ...7 Status Reporting ...
Page 93: ...Figure 7 1 Status Byte Structures and Concepts Status Reporting 7 3 ...
Page 97: ...Figure 7 2 Service Request Enabling Status Reporting Key Features 7 7 ...
Page 100: ...Figure 7 3 Parallel Poll Data Structure Status Reporting Parallel Poll 7 10 ...
Page 105: ...8 Error Messages ...
Page 110: ...8 6 ...
Page 112: ......
Page 113: ...9 Common Commands ...
Page 116: ...Figure 9 1 Common Commands Syntax Diagram Common Commands 9 4 ...
Page 122: ...Figure 9 2 IST Data Structure Common Commands IST Individual Status 9 10 ...
Page 132: ...9 20 ...
Page 133: ...10 Mainframe Commands ...
Page 135: ...Figure 10 1 Mainframe Commands Syntax Diagram Mainframe Commands 10 3 ...
Page 136: ...Figure 10 1 continued Mainframe Commands Syntax Diagram continued Mainframe Commands 10 4 ...
Page 159: ...11 SYSTem Subsystem ...
Page 161: ...Figure 11 1 System Subsystem Commands Syntax Diagram SYSTem Subsystem 11 3 ...
Page 172: ...11 14 ...
Page 173: ...12 MMEMory Subsystem ...
Page 175: ...Figure 12 1 MMEMory Subsystem Commands Syntax Diagram MMEMory Subsystem 12 3 ...
Page 198: ...12 26 ...
Page 199: ...13 INTermodule Subsystem ...
Page 201: ...Figure 13 1 Intermodule Subsystem Commands Syntax Diagram INTermodule Subsystem 13 3 ...
Page 216: ...13 18 ...
Page 217: ...14 TGTctrl Subsystem ...
Page 219: ...Figure 14 1 Targetcontrol Subsystem Commands Syntax Diagram TGTctrl Subsystem 14 3 ...
Page 220: ...Figure 14 1 continued Targetcontrol Subsystem Commands Syntax Diagram TGTctrl Subsystem 14 4 ...
Page 233: ...Part 3 15 Programming Examples 15 1 Programming Examples ...
Page 234: ......
Page 235: ...15 Programming Examples ...