Virtual Instrument Registers
The Virtual Instrument Registers are used to identify what virtual
instrument functionality the HP E1313/E1413 modules have.
Common Capabilities Register
Base + 1A
16
Read only, returns 50
16
: This register indicates whether the HP E1413
supports certain optional registers.
Address
15 - 7
6
5
4
3
2
1
0
Base + 1A
16
0
Send Count
Rec Count
IRQ 1
IRQ 2
Send Frame
Rec Frame
Slave Addr
Send Count: A one (1) indicates that the device has a Send Count Register.
A zero (0) indicates that the Send Count Register locations have some
device specific function(s).
Rec Count: A one (1) indicates that the device has a Receive Count
Register. A zero (0) indicates that the Send Count Register locations have
some device specific function(s).
IRQ 1: A one (1) indicates that the device has the IRQ Config 1 Register.
A zero (0) indicates that the IRQ Config 1 Register location has some
device specific function(s).
IRQ 2: A one (1) indicates that the device has the IRQ Config 2 Register.
A zero (0) indicates that the IRQ Config 0 Register location has some
device specific function(s).
Send Frame: A one (1) indicates that the device has the Send Frame
Register. A zero (0) indicates that the Send Frame Register location has
some device specific function(s).
Receive Frame: A one (1) indicates that the device has the Receive Frame
Register. A zero (0) indicates that the Receive Frame Register location has
some device specific function(s).
Slave Addr: A one (1) indicates that the device has the Slave Address
Register. A zero (0) indicates that the Slave Address Register location has
some device specific function(s).
Appendix D
Register-Based Programming 349
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