User`s manual

www.vxitech.com
Tektronix to VXI Technology Cross-Ref. Guide 159
TABLE 18-2: PINOUT CROSS-REFERENCE TABLE VX4802 TO SM4802
(HANDSHAKE/TRI-STATE LINES)
SIGNAL VX4802 SM4802
Data Ack Out
S4.46 J100.D2
Data Avail. Out
S4.47 J100.E2
Data Ready In
S4.48 J100.D6
Ready For Data In
S4.49 J100.E6
ETS 0 – 4
S4.50 J100.D3
ETS 0 – 4
S4.50 J100.E3
ETS 0 – 4
S4.50 J100.D7
ETS 0 – 4
S4.50 J100.E7
ETS 0 – 4
S4.50 J100.D11
ETS 9
S5.46 J100.E19
ETS 8
S5.47 J100.D19
ETS 7
S5.48 J100.E15
ETS 6
S5.49 J100.D15
ETS 5
S5.50 J100.E11
VXIPLUG&PLAY COMMON FUNCTION CALLS
Rehosting
To replace obsolete components typically requires a great deal of software effort because there are
often many test program sets that need to be changed. VXI Technology has greatly simplified this
task by developing a translation driver set for the VX4802. The translation driver takes function
calls to the VX4802 and converts them to SM4802 calls. The result is that virtually any code
written to operate with the VX4802 can be used, without modification, when an SM4802 is
installed in its place.
All commonly used functions are supported in the translation driver set. For those functions not
supported, VTI includes the translation driver source code for custom modification or will add the
functions by request. A list of all tkvx4802 functions supported in the translation driver set are
listed in the following table.
Exceptions
1.) Set Tri-State level is not supported. The active levels for tri-state control on the SM4802 are
not selectable. A call to this function will return an error.
2.) Simultaneous Input/Output strobing is not supported.
3.) Enable/Disable Interrupt is currently not supported.
4.) The QueryStatus function is currently not supported.