Project BOCA
C. Smith came up with the actual SSP manual.
Shazaam!
@60E5.ADF "Dual Async/Parallel
Adapter 2"
@60C2.ADF BMCPS2 Ser/Par Long
Board (1.0)
@60C9.ADF BMCP01 Parallel Long
Board (1.0)
NOTE:
ADF in PARLONG.ZIP
@60C9.ADF BMCP01 Parallel Short
Board (1.1)
Boca Research Dual
Async/Parallel Adapter 2
Pinout for 37 Pin
DB37
ADF Sections for SSP
Boca
Research Bidirectional Parallel Adapter
Short
Search for a Killer
Sordid confused about the DAP and the
SSP....
Boca Research
Dual Async/Parallel Adapter 2
U1-U3 MC1489A
U4-U5 MC1488
U6 KS82C452
U7 M60013-1006SP
Y1 18.432 MHz Xtal
MCA SSP 1990-1991
Model 4230?
![](Boca_EUD5U9_1990.jpg)
U6 (90) Silicon Logic
LD1108 /16C452
U6 (91) Samsung KS82C452
U6 is the Serial Port controller, U7 is the Parallel Port
controller.
MCA SSP 1992
![](Boca_EUD5U9_1992.jpg)
U1 Startech ST16C452CJ
37 PIN
CONNECTOR PINOUTS (ID = 60E5)
From Carlyle F. Smith
This is from the original Boca.MCA SSP
Installation Guide for the ID=60E5 adapter.
Notes:
o 1st column is the 37 D-shell pins
o 2nd column is the 25-pin female D-shell Parallel
and 25-pin male D-shell Serial A and Serial B pins
==========================
Pin Pin Connector and Designation
--- --- -------------------------
1 P18 Signal ground (Actually pins 18-25
are all grounded)
2 8 Par. Data Bit 6
3 6 Par. Data Bit 4
4 4 Par. Data Bit 2
5 2 Par. Data Bit 0
6 16 Par. -INIT (Initialize
Printer)
7 P25 Signal ground
8 15 Par. -ERR (Error)
9 11 Par. BUSY (Busy)
10 10 Par. -ACK (Acknowledge)
11 8 B -DCD (Rec'd line
Signal Det.)
12 20 B -DTR (Data Terminal Ready)
13 5 B -CTS (Clear to Send)
14 4 B -RTS (Request to
Send)
15 A7 Signal ground
16 6 A -DSR (Data Set Ready)
17 22 A -RI (Ring Indicator)
18 20 A -DTR (Data Terminal Ready)
19 4 A -RTS (Ready to Send)
20 9 Par. Data Bit 7
21 7 Par. Data Bit 5
22 5 Par. Data Bit 3
23 3 Par. Data Bit 1
24 1 Par. -STB (Strobe)
25 14 Par. -AFD (Auto Feed)
26 17 Par. -SLIN (Select Input)
27 13 Par. SLCT (Select)
28 12 Par. PAPE (Paper End)
29 B7 Signal Ground
30 22 B -RI (Ring Indicator)
31 6 B -DSR (Data Set Ready)
32 3 B -RxD (Received Data)
33 2 B -TxD (Transmitted
Data)
34 8 A -DCD (Rec'd Line
Signal Det.)
35 3 A -RxD (Rec'd Data)
36 5 A -CTS (Clear to Send)
37 2 A -TxD (Transmitted
Data)
======================================
37-pin D-shell pin assignments
to 25-pin connectors:
1 2 3 4 5 6
7 8 9 10 11 12 13 14 15 16 17 18 19
SG P P P P P SG
P P P B B B B
SG A A A A
P P P P P
P P P P SG B B
B B A A A A
20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
37
Actually, presented this way, The wire bundling makes
some sense, as it should.
AdapterId
060E5H Boca Research Dual Async/Parallel
Adapter 2
Serial Port A
This serial port may be configured at any
one of 8 standard base I/O port addresses (SERIAL_1
through SERIAL_8) , or it may be disabled. The standard
selections for interrupt levels in the PS/2 family is
for SERIAL_1 to be set to INT 4 and for SERIAL_2 through
SERIAL_8 to be set to INT 3. The BOCAMCA.SSP supports
the microchannel shared interrupt scheme. This
means that more than one serial port may be configured
to use the same interrupt level.
<SERIAL_1
INT
4> Whole lotta choices
Serial Port B
<SERIAL_1
INT
4> Whole lotta choices
Parallel Port
This is an IBM PS/2 compatible
bidirectional parallel port. It may be configured
at any one of the three standard parallel port base I/O
addresses (PARALLEL_1 through PARALLEL_3) or it may be
disabled. All parallel ports generate interrupts
on INT 7 NOTE:
IBM LPT order!
<PARALLEL_1
INT 7> (03bch-03bf),
PARALLEL_2 INT 7 (0378h-037b),
PARALLEL_3 INT 7 (0278h-027b). DISABLED
Parallel Port Mode
The BOCA.MCA parallel port, like the
systemboard parallel port, has the capability of
operating in either bidirectional or unidirectional
modes. The bidirectional capability is a new feature of
the PS/2 family and will only be used by software
specifically written to take advantage of it. The
default for this setting is unidirectional mode to
ensure backwards compatibility with PC software.
<Unidirectional>,
Bidirectional
Boca
Research Bidirectional Parallel Adapter
Short
J1 DB25 Parallel
U1 M60013-1006SP
Searching
for a Killer
From Carlyle Smith (The Wizard)
The problem arises with cards that have
ostensibly the same ADF ID, but quite different
construction.
There are two versions of the @60C9
bidirectional printer adapter. The _short_ bidirectional
parallel port card and the _long_ bidirectional parallel
port card (ADF found in PARLONG.ZIP on the Boca site)
The POS Difference
After the Wiz pointed out the wrong adfs
were causing trouble, I looked at the adfs for
differences.
Parallel Connector Item
Port
|
Short |
Long
|
PARALLEL_1
|
pos[0]=XX11101Xb |
pos[0]=XXX1101Xb
|
PARALLEL_2
|
pos[0]=XX11010Xb |
pos[0]=XXX1010Xb
|
PARALLEL_3
|
pos[0]=XX10010Xb |
pos[0]=XXX0010Xb
|
Hopefully, Tim Clarke will tell all of us what
the significance of 2 'x's vs. 3 'x's. If I remeber, X
means that the system doesn't care what the digit is.
Tell ME
what the change from X to 1 makes.
9595 Main Page
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