Abort Switch (S1); Reset Switch (S2) - Motorola MVME2600 series Installation And Use Manual

Functional Description
3

ABORT Switch (S1)

RESET Switch (S2)

3-16
Table 3-2. P2 Multiplexing Sequence (Continued)
MXDO (From Base Board)
Time Slot Signal Name
7 RLB4
8 IDREQ
9 DTR1
10 DTR2
11 Reserved
12 Reserved
13 Reserved
14 Reserved
15 Reserved
The switch is located on the LED mezzanine. When activated by
ABORT
software, the switch can generate an interrupt signal from the base
ABORT
board to the processor. The interrupt is normally used to abort program
execution and return control to the debugger firmware located in the
MVME2603/2604 EPROM and Flash memory. The interrupt signal
reaches the processor module via ISA bus interrupt line IRQ8
is also available at pin PB7 of the Z8536 CIO device, which handles
various status signals, serial I/O lines, and counters.
The interrupter connected to the
filtered to remove switch bounce.
The switch is located on the LED mezzanine. The
RESET
resets all onboard devices; it also drives a
MVME2603/2604 is the system controller.
MXDI (From MVME761)
Time Slot
7
∗
8
9
10
11
12
13
14
15
switch is an edge-sensitive circuit,
ABORT
SYSRESET
Computer Group Literature Center Web Site
Signal Name
DCD4
TM4/MID2
RI4
RI1
DSR1
DCD1
RI2
DSR2
DCD2
∗
. The signal
switch
RESET
∗
signal if the