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Getting Started
15
J102 and J103
Pin Assignment
Figure 1-4 shows the pinout for the J102 and J103 pads. Notice that the
bottom row of pads on J103 (CGND) are connected to chassis ground
through the carrier to the VXIbus mainframe. The ±12VDC pads are located
just to the left of the bottom of J102.
TR0 - TR15: Data Input Lines (register address 14
h
in A24 Memory).
BC0 - BC15: Data Output Lines (register address 14
h
in A24 Memory).
WP0 - WP7: Write Decoder Lines (address 20
h
-2E
h
in A24 Memory).
RP0 - RP7: Read Decoder Lines (address 20
h
-2E
h
in A24 Memory).
BUSY*: Delay Timer Output. (Delay Time Reg. Addr. 12
h
in A24)
output from breadboard.
CINT*: Clear Interrupt. A negative pulse is asserted during interrupt
acknowledge if external interrupt request is pending, output from
breadboard.
EINT*: User Supplied External Interrupt Request. Falling edge causes
interrupt to host controller if enabled.
LAT*: Latch signal for write cycle, output from breadboard.
CRST*: Reset, low means breadboard being reset, output from breadboard.
DBEN*: Data Bus Enable, low to enable data bus, output from breadboard.
W14*: Output Register Latch Signal of 14H in A24 memory space, rising
edge latches data into external device, output from breadboard.
CGND: Chassis Ground
Figure 1-4. J102, J103 Connector Pinouts
BUSY*
CINT*
LAT*
EINT*
CRST*
DBEN*
+5V
+5V
+5V
GND
GND
W14*
J102
J103
GND
CGND
GND
CGND
Summary of Contents for E2259A
Page 3: ... ...
Page 5: ...2 Contents Appendix A Agilent E2259A Specifications 45 ...
Page 9: ...6 Notes ...
Page 10: ...7 Notes ...
Page 11: ...8 Notes ...
Page 37: ...34 Register Descriptions or decimal 2 097 408 16 2 097 424 ...