Mostek z80 - Page 17

1-7
2
RED
3 ORANGE
4
YELLCW
5
GREEN
6
BLUE
7
VIOLET
8
GREY
When a probe is referenced in this manual or in a print out, P(for Probe)
will be followed by ei ther A or B and then the probe nunber. PB6 for
example refers to the blue probe of the B set.
-- --
When the AIM-Z80AE is initialized, the control signals Ml, MREQ, RD and WR
are disabled to the Target system. '!he signals are disabled without
introducin:J any gli tches which could interfere with proper dynamic RAM
operation. '!hese control signals are not disabled during execution from the
Emulation RAM so Z80 peripheral devices can recognize the RETI instruction
when it is fetched from Emulation RAM. '!his requires that the user disable
any memory in the Target systan from resfX)ndin:J on the CPU data bus when
Emulation RAM is accessed.