ADC Super Quad S-100 User manual

THE WORLD'S FIRST. ...
S-100 Single Board Computer
TECHNICAL MANUAL
for
SUPER QUAD
12700-8 Knott Avenue, Garden Grove, CA 92641
TELE: [phone]/ TELEX: 678401 Tabirin

INTRODUcrION
ADVANCED DIGITAL CORPORATION is proud to introduce the SUPER QUAD.
The SUPER QUAD is a Z80 based single board computer designed to be
a bus master in an SIOO bus system. The SUPER QUAD SOC has all the
hardware needed to run a single user CP/M system or 2 user MP/M
system with up to 4 external floppy disk drives and an external
Centronics parallel interface printer all on one board.
The board also runs with TURBO-LOS Un.
The SUPER QUAD SEC contains:
1) Z-80A
cpu
(4 MHZ)
2)
Floppy disk controller
(up to 4
drives 8" or 5!:i" )
3) 64K
of dynamic merrory (16K
bank selectible)
4)
2K or 4K of shadow eprom
(2716 or 2732)
5) 2
serial ports
(Z80A SIO opt. syncronous)
6) 2
12 bit parallel ports,
(Z80A PIO)
one of which can be used
for SIOO vectored interrupts
7) Real t~e interrupt clock (Z80A CTC)
8) SIOO extended address Al6-A23
ONE YEAR WARRANTY.
*Note: Items 5 and 6 require external adaptation for RS-232 and
Centronics. The adapter boards are 2 x 2" and are called
PS NET. They hoop up to the back of the main frame with
a DB-25 connector.
1

TABLE OF CONTENTS
Page
Introduction
................................................... 1
Table of Contents •••••••••••••••••••••••••••••••••••••••••••••• 2,3
1.0
2.0
Operation •••••••••••••••••••••••.••••••••••.•••
1.1 Floppy disk •••••••••.••.•••••••••••••••
1.2 64 K Dynamic Ram ••••• ~ •••••.••••••••.••
1.3 Monitor Eprom ••••••••••••••••••••••••••
1.4 Serial Ports •••••••••••••••••••••••••••
1.S Parallel Ports •••••••••••••••••••••••••
1.6 Real Time Clock ••••••••••••••••••••••••
1.7 5100 bus interface •••••.••••••••.••••••
EPROM
2.1
2.2
2.3
2.4
alld Moni tor ••••.•••••••••••••••••••••••••
Enable I Disable software ••••••••••••..•
Monitor Sign-on ••.•••••.••••••••••••••••
Monitor Commands •••••••••••••••••••••••
Cold boot loader program •••••••••••••••
4
4
S
S
5
6
6
7
7
8
8
9
3.0 Input / Output port assignments ••••••••••••••••• 10
4.0
Input / Output port description
11
4.1 ·SIO serial port channel A •••••••••.•••• 11
4.2 SIO serial port channel B •••.•••••••••• 11
4.3 PIO parallel port channel A •••••••••••• 11
4.4 PIO parallel port channel B •••••••••••• 11
4.S Control timet Interrupt circuit •..•••• 11
4.6 Floppy Disk controller ••••••••••.•••••• 11
4.7 Floppy disk control port ..••.••••.••••• 12
4.8 Extended address port •••••••••••••.•••• 13
4.9 On-board memory control port .•••••••••• 14
S.0 Jumper definitions •••••••••••••.••••••••.••.••• 15
6.0
Jumper
6.1
6.2
6.3
6.4
6.S
6.6
6.7
6.8
6.9
6.10
6.11
6.12
descriptions
............................
Jumper
A -
CPU
clock
rate
..............
Jumper
B - S10
channel
A
clock
.........
Jumper C -SIO
channel
B
clock
.........
Jumper
D -
Drive
type selection
........
Jumper
E -
VIa
I
PI N'I' ..................
Jumper
P -
VIa
/
paralled bit
D0
·......
Jumper
N - VII
/
paralled
bit
Dl ·......
Jumper
tvl
-
VI2
/
paralled bit
D2
·......
Jumper
K -
VI3
I
paralled
bit
D3
·......
Jumper
J -VI4 /
paralled bit
D4
·......
Jumper H - VIS / paralled bit DS
Jumper G - VI6 / paralled bit D6
2
IS
16
16
17
18
18
18
18
19

7.0
8.0
6.13
6.14
6.15
6.16
6.17
Baud
7.1
Jumper F - VI7 / paral1ed bit D7 •...•.. 19
Jumper R - 2716 / 2732 ..•••....••..•.•• 19
Jumper S - Floppy connector •.•..••..•••
Jumper T - Memory Write Signal ••••••••• 20
Jumper layout •..••••.•••.••••••••••••.•• AA
Rate Switch •••••.•••••••.•.•••..••••••••••
Switch Setting
21
21
External Connector pin definitions ••••••..•••••
22
22
23
24
25
25
8.1
8.2
8.3
8.4
8.5
Jl
J2
J3
J4
J5
- 5100 bus ••••••••••••••••••••••••••
Parallel Port •.•••••••••••••••••••
Floppy Disk controller ••••••••••••
- Serial port channel A .••••••••••••
Ser ial port channel B •••••••••••••
9.0 Bloc\<. Diagram.................................. 26
10.0
Factory
10.1
10.2
10.3
10.4
10.5
10.6
10.7
10.8
10.9
10.9.1
Installed Jumpers ••.•••••.•••••••••••••
8 inch drive configuration •••••••••••••
5.25 inch drive configuration ••.•••••••
Shugart 800 drive .•••••••.•.•••••••••••
sl:'lugart 850 ............................ .
MP I d r i v e ..•.....•.........•.•••.......
M FE n\ 0 del 700 • . . . . . . . . . . . . . . . . . . . . . . . . . .
TANDON SLIM LINE .••.•••••••••••••••••••
NEC model FDl160 ••••.•.•••.••••••••••.••
QUME Data Track 8 •••••••••••••••••••••••
'l'ANDON 5 1/4" •••••••••.••••••.••••••••••
27
28
29
30
31
11.0 Appendex & Data sheets .•••••...••••••.••••••••• 32
12.0
13.0
11.1
11.2
11.3
11.4
11.4.1
11.5
11.6
11.8
11.9
11.10
Appendex A Z80A SIO / DART ••••.•..•••
Appendex B - Z80A PIO .•••••••••••••••••
Appendex C - Z80A CTC .•••••••••.•••.•••
Appendex 0 - Floppy Disk controller ••••
W'D 169 1 , BR19 41 • • • • . . • • • • • • . . . • • • • . • • • • • •
Appendex E - Z80A CPU .•••••••••••••••••
Appendix F- FLOPPY ERROR CODE ••..••.•.•
War' rant't1 •••••.•.•••..••••••.•••.•.••••••
Application notes:
Turbo-Dos app. notes .••
Additional memory boards ••...
Recomended additional 5-100 boards:
Hard disk: morrow designs,konan,xcomp
Memory: measurement systems,PCE
Graphics: micro angelo
Slave Processor: Advanced Digital, MUSYS corp.
Parts list
Schematic Diagram
3

'1.1 The Floppy Disk Controller
The floppy disk controller can access up to four 8 inch or 5.25
inch floppy disk drives. It can read and write IBM 374g single
density format and double density 128,256,512,lg24 sector size
formats. Data transfer is done by programmed I/O with wait and
interrupt syncronization.
Note: The controller cannot access both 8 inch and 5.25 inch drives
simultaniously,The controller is switched from 8 inch to 5.25 inch
drives by hardware jumper options.
1.2 The 64 k Dynamic ram
The 64 k ram array can be switched on and off in 16 k increments
(0-16K,16K-32K,32K-48K,48K-64K) under software control. This allows the
CPU to access bank switchable external memory on the 8100 bus.
The memory has an access time of 2000s. Refresh is done during
Z80 Ml cycles and during wait and reset states. The memory can
be accessed by an external DMA device on the 5100 bus.
Note : Any external DMA device that is using continous mode DMA
cycles must transfer data at an average rate of 15 us
per byte or
faster when holding the DMA request line for more than 1.5 ms This is
not a problem because most designers are smart enough to use
byte-at-a-time or burst transfer modes when dealing with slow DMA
transfer rates. The ram row address is the low order addtess there-
for the entire ram array is refreshed by the DMA device every 128
contiguous memory cycles.
4

1.3 System Monitor Eprom
The system monitor eprom is switched on during reset. It can be
disabled and enabled under software control. It resides when
enabled at F000h to FFFFh. It has commands that allow the user
to load the CP/M, MP/M or other boot loaders from floppy disk.
In addition it can be used to load , examine goto and test
memory. When the prom is disabled. it does not use any system address
space.
1.4 Serial ports
A Z80A DART is used for the two serial ports , but
a ZB0A SIO/0 chip can be used in it's place. This allows
asyncronous and synchronous serial data communications plus a variety
of interrupt modes. Modem control signals are available at each
serial connector. There are two switch selectible baud rate
generators for baud rates of 50 to 19.2 k baud.
Note : The serial ports are TTL and must be connected to external
interface boards for RS232 communications.
(PS NET/I)
1.5 Parallel ports
A Z80A PIO is used as the parallel port. The "A" channel of this chip
is connected to the parallel port connector. This port has 8 bi-dir-
ectional data lines and two hand shake lines. The "B" port can be split
between the parallel port connector and the S100 bus vectored interrupt
lines by jumper options. This allows the port to be used as an
additional parallel port or interrupt controller or both.
In the output mode the parallel ports can drive one TTL load •
5

1.6 Real Time Interrupt clock
A ZaCA CTC is used for providing a real time system clock fOl MP/M.
Three channels of the CTC are available to the user for strapping via
a jumper header for synchronous baud rates or long clock times.
1 .? S100 Bus Inter face
The Sl00 bus interface provides the signals necessary for an 8 bit
bus master as described by the IEEE 696 bus specification.
Vectored interrupt lines VI0 - VI? are supported via jumper options
and A16 - A23 are also supported vis an I/O port.
#
The PAMNTON line is also implemented for the dynamic ram array.
6

2.~ EPROM and Monitor operation
The onboard EPROM occupies address F~~~H-FFFFH. The EPROM
is switched on automatically during reset or power on, the
EPROM contains SIO and Foe initialization code along with a
simple debugger and floppy disk cold start loader. After
the operating system is loaded the EPROM can be turned off
so that the ram at address F000H-FFFFH can be accessed. The
EPROM can be turned on and off at any time so that hardware
dependent I/O routines can be called.
2.1 Eprom Enable / Disable
Switching EPROM on :
F033 3E4F
MVI A,~l001l11B iRESET POWER ON JUMP
i AND ENABLE MEMORY, EPROM ON
F035 0316 OUT 168 iWRITE TO CONTROL PORT
Switching EPROM off
F033 3E4F MVI A,0110l111B iRE5ET POWER ON JUMP
; AND ENABLE MEMORY, EPROM OFF
F035D316 OUT 16H iWRITE TO CONTROL PORT
Jumper R configures the board to accept a 2716 or 2732 EPROM.
Note : The EPROM is always addressed at F800H and can not
be moved. Since the 2716 EPROM is 2K long it appears
twice , F800H-FC00H and FBFFH-FEFFH.
2.2 Monitor 5ignon
The EPROM contains a simple debugger.
The monitor signs on with
> ADVANCED
DIGITAL CORP.
>
Monitor Version 1.1
Mar - 1982
Press "H" for help
2.3 Monitor Commands
7

The monitor commands are :
Control B = Load disk boot loader 5.25"
Control C = Load disk boot loader 8 "
D SSSS
QQQQ = Dump memory in hex from ssss to QQQQ
F ssss QQQQ BB = Fill memory from SSSS to QQQQ with BB
G AAAA = Go to address AAAA
L AAAA = Load memory starting at AAAA
M SSSS QQQQ DO = Move from S to Q to ADDR DO
P SSSS QQQQ = Print in ascii from SSSS to QQQQ
T = Test Memory
ESC will terminate any command
The cold boot loader will select and home drive ~.
Track 0 sector 1 will be read into memory at location 0 •
•
Single densi~y is assumed for track 0.
If an error occures an error code will be printed.
The error code must be translated using the table
in appendex F page F-4 fig 2.
e.g. FDC COLD BOOT ERROR 80= DISK NOT DETECTED
FDC COLD BOOT ERROR 10= WRONG FORMAT OR NO DATA ON DISK OR BAD PHASE LOC
LOOP.
2.4 Cold Boot Program
READ TRACK 0 SECTOR 1 INTO MEMORY
BOOT 5:
MVI
A,08H
OUT WAIT
iset double for 5 inch
BOOT:
F4B5 3E0D MVI
A,00H i RESET FOC
F4B7
D30C OUT
FDC
; ISSUE COt-1MAND
F4B9 00
NOP
FOCW1:
F4BA DB0C
IN
FDC
CHECK BUSY
F4BC
0F
RRC
F4BD
DABAF4
JC
FDCWl
F4C0 00
NOP
KILL TIME
8

F4C1 00
NOP
F4C2 00 Nap
F4C3 00
NOP
F4C4 3E03
MVI
A,3
GET A
RESTORE
E'4C6
D30C
OUT
FDC
ISSUE COMMAND
f'4CB 00
NOP
F4C9
OB14
IN
WAIT WAIT
FOR
E'4CB
00
NOP
INTRQ
'l'K 0 :
F4CC DBCC
IN
FOC
F4CE E604
ANI
4
CHECK TRACK "
E'4D0 CACCF4
JZ TK0
F4D3 AF
XRA A
F404 6F
MOV
L,A POIN'l'
1\'1' LOC
"
F405 67
MOV
R,A
F4D6 3C
INR A
E'4D7
D30E
OUT FDCSEC
SET SECTOR
F4D9
3EBC
MVI
A,08CB
GET READ COMMAND
F4DB
030C ou'r
FOC
ISSUE COMMAND
F4DD ~0
Nap
FDCRD:
E'4DE
DB14
IN WAIT WAI'1' FOR INTRQ
F4E0 B7 ORA A OR ORQ
F4El F2EBF4
,JP
BOOTDN
EXI T I F I N'1'RQ
F4E4
DB0F
IN FDCDATA GET DATA
E4E6 77 MOV M,A
S'I'ORE
F4E7 23
INX
H paIN'!'
NEXT
F4EB C3DEF4 . JMP
FDCRO
BOOTON:
F4EB DB0C IN
FDC
CHECK S,!'ATUS
F'4ED
B7
ORA A o = NO ERROR
F4EE CA0000
JZ
0 OK, GO
F4F1 F5
PUSH PSW
SAVE ERROR
F4F2
210FF6 LXI
H,BTERR PRI
N'l'
F4F5 CDE6F0
CALL
MSG DISK ERROR
F4F8 F1 POP PSW
GE'!, ERROR
F4t"'9
C021Fl CALL THXB
PRIN'!' IT
9