Mostek z80 User manual

MOSTEI(®
zao MICROCOMPUTER SYSTEMS
Operations Manual
AIM-Z80AE
APPLICATION
INTERFACE
MODULE·

AIM-Z80AE
OPERATION MANUAL
publication Number 79650

i
TABLE OF CONTENTS
SECTION PARAGRAPH PAGE
NUMBER NUMBER TITLE NUMBER
1 GENERAL DESCRIPTION 1-1
1.1 INTRODUCTION
1-1
1.2 REFERENCES
1-4
1.3
CONVENTIONS
1-4
1.4
TERMINOLCXiY
1-5
1.5
BUl<'FER MODULE
1-6
1.6
CONTROL MODULE
1-9
1.7 HISTORY MODULE 1-11
2
AIM-Z80AE INSTALLATION
2-1
2.1 INTRODUCTON
2-1
2.2 COMPATIBLE SYSTEMS
2-1
2.3 EQUIPMENT REQUIRED
2-1
2.4
JUMPER OPTIONS, CONTROL MODULE
2-2
2.5 JUMPER OPTIONS, HISTORY MODULE
2-4
2.6 TARGET SYSTEM CONFIGURATION
2-6
2.7
INSTALLATION 2-7
2.8 INITIAL CHECKOUT PROCEDURE
2-9
3
AIM-Z80AE OPERATION
3-1
3.1 INTRODUCTION
3-1
3.2 PREPARATION
3-3
3.3
INITIALIZATION
3-3
3.4 ERRORS
3-3
3.5
CCfv1MAND FORMAT
3-7
3.6 HEXADECIMAL NUMBERS
3-7
3.7 ASCII LITERAL
3-7
3.8 MNEMONICS
3-7
3.9 RELATIVE ADDRESS
3-9

ii
TABLE OF CONTENTS
SECTION PARAGRAPH PAGE
NUMBER NUMBER
TI'rLE NUMBER
3
3.10 IMPLIED MEMORY ADDHESS POINTER
3-9
3.11
ADDED OR SUBTRACTED NUMBERS
3-9
3.12 EQUAL SIGN
3-9
3.13 SPECIAL KEYS 3-10
3.14 B-BREAKPOINT COMMAND
3-11
3.15
DESCRIPTION, B COMlVJAND
3-11
3.16 EXAMPLES, B COlYMAND
3-15
3.17 C-COPY COMMAND
3-18
3.18 DESCRIPTION, C COMMAND
3-18
3.19 EXAMPLE, C COMMAND
3-18
3.20 D-DUMP CCMVIAND
3-19
3.21
DESCRIPTION, D COMMAND
3-19
3.22 EXAMPLE, D COMMAND
3-19
3.23
E-EXECUTE COMMAND 3-20
3.24 DESCRIPTION, E COMMAND
3-20
3.25 EXAMPLES, E COMMAND
3-21
3.26
ESCAPE-EXEC UrI ON ESCAPE COMMAND
3-22
3.27 DESCRIPTION, ESCAPE COMMAND
3-22
3.28 E~WLE, ESCAPE C~~D
3-22
3.29 F-FILL COMMAND
3-23
3.30
DESCRIPTION, F COMMAND
3-23
3.31 EXAfVWLES, F COMIVJAND
3-23
3.32 G-GET COMMAND
3-24
3.33 DESCRIPTION, G COMMAND
3-24
3.34
EXAMPLES, G COMYffiND
3-24
3.35 H-HEXADECIMAL ARITHMETIC
3-25
3.36 DESCRIPTION, H CCMvlAND
3-25
3.37 EXAMPLES, H COMMAND 3-25
3.38 I-INITIALIZE MEMORY MAP COMMAND
3-26
3.39 DESCRIPTION, I COMMAND
3-26

iii
TABLE OF CON'fENrrS
SECI'ION PARAGRAPH
PAGE
NUMBER NUMBER
TITLE NUMBER
3
3.40 EXAMPLES, I C~~D 3-27
3.41 L-
LOCATE COMMAND
3-29
3.42 DESCRIPTION, L COMMAND
3-29
3.43 EXAMPLES, L COMMAND
3-29
3.44 M-MODIFY COMMAND
3-30
3.45 DESCRIPTION, M COlYMAND 3-30
3.46 EXAMPLE, IV! COMMAND
3-33
3.47
O-SET OFf~ET COMMAND
3-34
3.48 DESCRIPTION, 0 COMMAND
3-34
3.49
EXAMPLE, 0 C~ffiND
3-34
3.50 P-PORT COMMAND 3-35
3.51
DESCRI PTI ON, P CavIMAND
3-35
3.52 EXAMPLES, P COMMAND
3-36
3.53
Q-Qurr CCM~ 3-37
3.54 DESCRIPTION, Q COMMAND 3-37
3.55
EXAMPLE, Q CavMAND
3-37
3.56
R-DISPLAY REGISTERS CO~~~~D 3-37
3.57
DESCRIPTION, R COMMAND
3-37
3.58 EXAMPLES, R CO~~D
3-38
3.59
S-STEP COMMAND 3-39
3.60
DESCRIPTION, S CO~IIV\AND
3-39
3.61
EXAMPLES, S COMMAND
3-40
3.62
T-TRACE HISTORY CO~~
3-41
3.63 DESCRIPTION, T COMMAND 3-41
3.64 EXAMPLES, T COMlVlAND 3-43
3.65
V-VERIFY COMMAND 3-48
3.66 DESCRIPTION, V CClMl'lAND 3-48
3.67
EXN~LE, V COMMAND 3-48
3.68
W-WRI'fE TO ALTERNATE LUN COMMAND 3-49

iv
TABLE OF CONTENTS
SECTION PARAGRAPH
PAGE
NUMBER NUMBER TITLE
NUMBER
3 3.69 DESCRIPTION, W COMMAND
3-49
3.70
EXAMPLE, W C<N1AND 3-49
3.71 Z-INITIALIZE
COMMAND
3-49
3.72
DESCRIPTION, z COMMAND
3-49
3.73 %-TEST MEMORY COMMAND
3-50
3.74 DESCRIPTION, % COMMAND 3-50
3.75 EXAMPLES, % COMMAND 3-50
3.76
EXECUTION TIMER OPERATION
3-51
3.77
OPERATION WITH MD-SBCl 3-51
3.78
OPERATION WITH MDX 3-51
3.79
OPERATION WITH OEM-80
3-52
APPENDIX A
FACTORY NOTICES
A-I
APPENDIX B SPECIFICA'l'IONS B-1
APPENDIX C SCHD~TIC DIAGRAMS
BUFFER BOX SCHEMATIC C-l
BUFFER BOX ASSEMBLY DRAWING
C-4
BUFFER BOX PARTS LIST C-5
HISTORY l"10DULE SCHEMATIC C-6
HISTORY MODULE ASSEMBLY DRAWING C-10
HISTORY PARTS LIST C-ll
CONTROL MODULE SCHEMATIC C-12
CONTROL MODULE ASSEMBLY DRAWING
C-16
CONTROL MODULE PARTS LIST C-17

v
LIST OF lo'IGURES
FIGURE
DESCRIPTION
NUMBER
1.1
AIM-ZS0AE SYSTEM 1-3
1.2 BUFFER MODULE
I-S
1.3
CONTROL MODULE 1-10
1.4 HISTORY MODULE 1-12
2.1
INSTALLATION IN MATRIX OR SYS-80F
2-9
2.2 MINIMUM TARGET SYSTEM 2-14
3.1
AIM-ZS0 COMMAND SUl't'llVJARY 3-1

vi
LIST OF TABLES
TABLE DESCRIPTION
PAGE
3.1
ERRORS 3-4
3.2 AIM-Z80 MNEMONICS 3-8
3.3 SPECIAL KEYS
3-10

1.1 INTRODUCTION
SECTION 1.0
GENERAL DESCRIPTION
1-1
AIM-Z80AE is an advanced developnent tool which provides debLg assistance
for both software and hardware via in-circuit emulation of the Z80
microprocessor. Use of the AIM-Z80AE is completely transparent to the
Target system configuration. No memory space or polrts are used and all
signals inclLrling RESET, INT, NMI, BUSRQ and WAIT are functional during
emulation.
Single step circui try allows user to execute Target instructions one at a
time
to see the exact effect of each instruction. Single step is functional
in R(lv1 as well as RAM.
Sixteen K bytes of emUlation RAM may be mapped into the Target memory space
at any desired address so that software may be developed even before Target
memory is available.
Breakpoint detect circuitry allows real time execution to proceed to any
desired point in the users program and then terminate with all registers and
status information saved so that execution may later be resumed. Real time
execution may also be terminated at any time with the Escape key. EVENT and
DELAY counters give added flexibility for viewing the exact point of
interest in the users program.
The 48 channel history module will simultaneously record any bus transaction
which the user may desire to see. Address bus, Data bus and Control signals
plus eighteen external probes which can be used to moni tor the Target
circuitry at other points are sampled by the history RAM.

1-2
AIM-Z8~AE is partitioned into three modules.
The Control and History
modules are .installed directly into the MOSTEK disk-based developnent
system. cables from these modules connect to the Buffer module which plugs
directly into the Target system Z8~ CPU socket.
After AIM-Z8~AE is
installed, the developnent systan is powered up and the systan booted up as
nonnal. All developnent system software and hardware is still functional.
AIM-Z8~AE systan software (AIMZ8~) may be initialized by using the implied
rtm conunand. AIMZ8~ will sign on, take control of the Target system and
allow the user to initialize the Target systan and use any of the
AIM-Z8~AE conunands to load, test and debug his Target program.

FIGURE 1.1 AI~Z80AE SYSTEM

1-4
1.2 REFERENCES
MATRIX Operation manual, MK79730
FLP-80DOS Operation manual, MK78557
Z80 DATA BOOK, MK79602
Z80 Micro Reference manual, MK78516
Z80 programming manual, MK78515
1.3 CONVENTIONS
The following conventions apply throughout this manual.
1. Hexadecimal input to the system does not require a leading numeric digit
and cannot have a subscript H.
2. (CR) represents carriage Return.
3. (LF) represents Line Feed.
4. (UP) represents Upcaret (ASCII code 5EH).
5. (SP) represents Space bar.
6. (.) represents period.
7. Bracketed items [] in a command line are optional.
8. Items in a command line which must be entered exactly as they appear are
shown as upper case.
9. Items in a command line which are variables are shown as lower case.
10. Characters in a command line which are entered by the user are under-
lined.

1-5
11. Signal names are upper case. i.e. the signal EXECl1I'ING.
12. (ESC) represents the ESCAPE key (ASCII code IBH).
13. Characters referenced in Text are enclosed wi th double quotes. (i .e.
when the character "Y" is entered) •
1.4 TERMINOLOOY
1. Target. '!he Target is the users system under developnent. When using
A]M-Z80AE, the Target CPU is contained in the Buffer module, but the re-
mainder of the Target system is the users hardware. '!he Target program
is the users program under developnent.
2. System. '!he System refers to the MOSTEK disk-based developnent system
including the AIM-Z80AE har:;dware. '!he System software includes the
MOSTEK disk-based developnent systems software as well as the
AIM-Z80AE software.
3. Emulation RAM. '!he Emulation RAM is the 16k byte (expandable to 64k
byte) dynamic RAM on the Control module. The Emulation Ram can be map-
ped
to any address in the Target memory map and is normally used to em-
ulate PROM or ROM which will eventually contain the Target program.
4. Interface RAM. '!he Interface RAM is a lk byte static RAM on the Control
module which is used for interface between the system and the Target.
This RAM can be accessed only by the system and is loaded with the
interface control program. '!he Interface RAM does not appear in the
Target memory map when the Target program is executed or examined, but
is shadowed in during debug.
5. Sampling. '!his refers to the operation of the History module. When the
History module is storin;J bus cycles into the History RAM, it is
sampling.

1.5 BUFFER MODULE
The Buffer module is located near the Target system and contains the Target
Z810 microprocessor, Target adaptor connector and interface buffers. cables
connect the Buffer module to the Control and History modules which are
installed in the development system. 'I'he Target adapter connector is
attached to the Buffer module with eighteen inches of flat cable and plugs
directly into the 'rarget Z810 CPU socket. There are five test sockets
available on the edge of the of the Buffer module with the following
signals.
rfEST POINtf
SIGNAL
BLUE
FETCH
(Ml for first
opcode of instruction)
GREEN
PHI
(Z80 clock)
YELLCM
SHAM
(Active when Emulation RAM is accessed)
RED
+5 VOLTS
BLACK GND
The signal SHAM is an active high signal which becomes active when the
I1nulation RAM is accessed. 'rhis si<.jnal may be used to reverse the direction
of buffers in the Target system so that RETI (Return from Interupt)
instructions executed from the Einulation RA!Vl can be recognized by the Target
system.
There are also two sets of nine probes designated the A and B which plug
into the upper left corner of the Buffer module. The probes are color coded
with standard EIA color codes as follows:
10 BLACK
1 BROtJN

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.

1-8
FIGURE 1.2 BUFFER MODULE

1-9
l.6 CONTROL MODULE
The Control module interfaces to the development system bus and has
circuitry for detecting the breakpoint conditions and forcing execution to
begin in the System Interface RAM. Connectors Jl and J2 bring the Address,
Il:lta and Control signals from the Target Z80 CPU in the Buffer module.
Connector J3 brings the hardware breakpoint signal from the History module.
The System
Interface RAM which is loaded with an interface program is
shadowed into the Target memory space. This control program makes the
Target CPU a slave to the development system. When the user desires to
resume execution, the control program activates the execution control
circuit and execution resumes at the desired address. '!he memory control
circuit is used to map the sixteen k byte emulation RAM to appear at any
address in the Target memory space.

FIGURE 1.3 CONTROL MODULE