M68360QUADS-040 Hardware User’s Manual
SUPPORT INFORMATION
59
FIGURE B-4 M68360QUADS-040 Interrupt to Host
B.3.4
Host Interrupt to the M68360QUADS-040
The Host can interrupt the M68360QUADS-040 (interrupt level 7) to abort the execution of programs
running on the board. This is done by selecting the address of the required M68360QUADS-040 and
momentarily asserting the ADS_BRK signal, which sets a latch in the M68360QUADS-040. The output of
the latch interrupts the EC040 on the M68360QUADS-040. The latch is cleared by the interrupt handling
software on the M68360QUADS-040.
B.3.5
Host Reset to the M68360QUADS-040
The Host can perform either hard reset or soft reset on the M68360QUADS-040. Soft reset is done by
selecting the address of the required board and asserting the ADS_RESET signal for more than 26
microseconds. Hard reset is done by selecting the address of the required board, asserting INT_ACK
signal, and asserting the ADS_RESET signal for more than 26 microseconds.
B.3.6
Addressing All M68360QUADS-040
The Host can reset or interrupt all M68360QUADS-040 boards that are connected to the same ADI. The
Host should assert the ADS_ALL signal in conjunction with either ADS_RESET or ADS_BRK. The
contents of the ADS_SEL(0:2) lines have no affect.
ADS_SEL(0:2)
HST_ACK
PD(0:7)
ADDRESS VALID
1
2
3
4
5
DATA VALID
ADS_INT
HOST_BRK~
INT_ACK
6
7
8
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software
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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