AY-Track: XOKKEU HA TPABE ...
__________________________________________
(C) Ivan Mak
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Wiring diagram 1Mb 30pin SIMM
to computers such as Pentagon (Leningrad)
Dear readers, due to the fact that
scheme not fit in 64 characters, I
had to "split" it into two parts. Scheme to cut chip LE1.
Right-hand side you found just below this.
Sincerely, Ze Pagan
LL1 LL1 KP11 DD61: 1
A1 1 1 of 4 1 6 D0 W A0 TM8 LE
/ IORQ May 2 LL1 D1 6 A1
D2 10 A2 Y0 April 4 D0 Q0 of 2
A1Z LL1 9 January 8 1h AZ W
May 7 1910 Y1 D2
/ WR 1h Jan. 11 D5 B0 Q1 6 2
DD61: 5 January 1912 D6 B1 Y2 September 1912 DZ 6
D7 11 B2 5
DD62: September 14 September 12 BZ YZ C
Q2 11
PROFI 1 R LE
S1 / bit2 # EFF7 15 OE 1K
/ 1 S 11
PENTAGON +5 V 12
1K
LI1
+5 B S2
/ / RES '
/
-----------------------------------------
IR22
3 D0 Q0 2 SIMM 30pin-1Mb
4 D1 Q1 5
7 D2 Q2 6 +5 V 1 Vcc
D0 .. D7 D3 Q3 8 9 DD45: June 2 / CAS
13 D4 Q4 March 12 D0
c Z80 14 D5 Q5 1915 DD18: April 4 A0
17 D6 Q6 1916 DD18: May 7 A1
18 D7 Q7 June 19 D1
DD18: July 9 A2
DD51: Jan. 4 ° OE DD18: August 12 A3
+5 B 11 C 9 total Gnd
by DD18: May 10 D2
1 KP12 DD19: April 11 A4
DD19: July 12 A5
° January 1915 ° SB 1913 D3
DD19: September 1914 A6
10 B0 DD19: December 15 A7
B14 11 B1 16 D4
° April 12 B2 YB ° September 1917 A8
A8 13 B3 18 A9
nothing 19 A10
June 1 A0 20 D5
B15 5 A1 DD51: April 1921 / we
° 13 4 A2 total 22 Gnd
A9 3 23 A3 D6
nothing 24 NC
1 ° SA YA ° July 25 D7
nothing 26 ParOut
C14 14 S0 DD45: 27 March / RAS
C23 2 S1 nothing 28 / ParCAS
nothing 29 ParIn
+5 B 30 Vcc
D0, D1, D2, D3, D4, D5, D6,
D7 to
3, 4, 7, 8,13,14,17,18 feet DD39
respectively.
DD64: a file for DD18: 11.
At DD16: 5 and DD16: 11 apply common.
Swap DD18: 2 (AB) and DD19: 13 (C34)
DD16: 2 (B11) and DD17: 13 (C35)
Old signals from the legs to go the new-cut. All Products
Series 1533. Possible but not recommended for replacement by a
series of 555.
Instead 1533KP12 can put 1533KP2.
Diode VD - any low-power, for example KD522.
Memory chips RU5 (7) must be removed from the board (or
block, if the power of BP allows them to leave).
If you have any problems with the
regeneration (the Pentagon still:) you can
do such a thing: on IR22 (see above) to signal to the DD51: 4,
passed through element LI1:
LI1
K43 in the 1 st leg
DD51: 4 'IR22 Revised
(See above)
===
10 .. 100pF
Mikrik S2 (and e-t LI1) should be placed, if you want to
disable the hardware upper memory area. And sometimes it is
enough S1, is if the prog does not understand all of standards
for extended memory.
bit2 port # EFF7-a software lock memory above 128K. If you
have comp this port is absent, instead,
signal was fed to a common wire.
Signals the address and data bus of the processor
designated as A0 .. A15 and D0 .. D7, respectively (be
careful!).
Still need to remove the lock memory
above 48K. Removed is simple: by DD64: 11
cut bit5 # 7FFD and this DD64: 1911 served a common wire. I
have this 48-second clips do not have one and a half years and
never even there was no problem with it. True, I've seen
several old 48-x toys that do not work without it. If among
these toys as luck turned out to be your favorite:), do not
worry - this is solved too simple. It can be used as S2 dual
mikrik. Then it will be as follows:
S2.2
/
DD62: 15 / in DD64: 11
1K
Or replace the item mikrik log.I:
LI1
DD62: January 15 '3 in DD64: 11
bit2 # EFF7 2
Now when you reset bita2 port # EFF7 in
zero memory above 128 will be opened and
48-I Latch - blocked. And when you install it in the unit will
be denied access to memory above 128K and 48-second clip can be
used.
If the comp is a CMOS-hours and installed flash ROM
"MadRom", then all these mikriki can be removed and make the
software management of CMOS_SETUP. More
see help for the firmware.
For Leningrad:
instead of B14 at KP12 serve with DD19: 4;
instead of B15 at KP12 serve with DD19: 7;
instead of C14 on feeding KP12 / RAS with DD2: 9;
instead of C23 on feeding KP12 / H1 with DD34: 2;
instead of DD61: a signal from the 1 st leg
KP11 (revision to 128K);
instead of DD62: 9 to signal with a 9-th leg
TM9 (revision to 128K);
instead of DD51: 4 to signal with DD9: 8;
instead of DD18: May apply for DD15: 3;
instead of DD64: a file with the 12th leg KP11 (up to
processing up to 128K) on the DD15: 6;
instead of DD16: 5 and DD16: 11 to apply for land
DD18: 3 and DD18: 6.
* On 15yu leg KP11 (revision to 128K) solutions
recommends to apply the land, freeing it
(Foot) from the pre-H1.
* With the 9th and 12th legs of the same KP11 recommends
Xia remove resistors.
Must still make a revision:
LL1 LI1
usually an element can LL1
A14 January 1 '3, DD9: 13 found in the floppy drive controller.
A15 2
DD34: 2 (/ H1)
This revision is needed to program, writing in an address #
0000 .. # 3fff, did not spoil the 128-th memory.
data bus SIMM apply for DD32;
address bus to take the SIMM with the same name
foot former RU5 (7) is the legs 5,6,7,9,10,11,
12.13;
/ RAS SIMM to take DD2: 9;
/ CAS takes something like this:
LN1
DD3: 3 (H0) January 1 ° 2 on the 2nd pin SIMM
As the inverter can juzat remaining element LE1. And KP11-x swap
does not need anything - in Leningrad such zamorochek with no
regeneration.
Leningradovskaya refinement "extension
memory up to 128k. "There is a view is the one
in which the management CAS'ami by using KP11 and LA3.
In principle, this is the analogue of the Pentagon control
circuit 128k, but in the A-parameter used Z-state KP11. If on
finalizing the Leningrad-clone made another scheme should be to
understand it.
As can be seen, the basis of this shemki - scheme
Revised Pentagon-128 to 512K by V.M.G
(From Spectrofon-17). If SIMM is placed on
512-th PC, it will likely require
add only a small number
chips and do the necessary for the regeneration of the
permutation.
As the expansion ports to 1Mb used Profi-port (# DFFD, mask
# 07) and Pentagon-1024 (# 7FFD, mask # e7).
Instead, 1Mb 30pin SIMM can be inserted
2Mb-30pin (verified). Only need apply
land on the 19 th pin SIMM'a (A19).
Of course, access is only available to the younger megabyte.
For a similar You can connect and 4Mb-30pin SIMM
(Put another TM8, KP12 and LE1), the problem
only in the absence of real ports and software
under such a memory. However, in the STS6.2 and
IS-DOS you can use a memory
any port would be the driver.
*
I can ask the trickiest to
such cases, the questions (and ask:): yeah why do you need this
MB?! = 8 [] And, in general, soft under it have? :]
Yeest! with regard to pros, it's a different story, but for
a megabyte at # 7FFD is the "home" cFosSpeed - TR-DOS 5.12f by
Reanimator. For those who are still in the tank, to remind:
this Doce instead of disk "D" is formatted to RamDisk 892kb! All
bend using to access the disk
# 3D13, working on ramdiske much faster. Estesno, the program
should not spoil 512yu memory.
I personally quite enough of that to
(Bystro!:) Tossa mail from a real disk
the virtual. Or, say, ZIP ... Or assemble with podgruzki. A lot
more then ...
Numbering chips given for the scheme
Pentagon, in which the address signals of the processor
designated as A1-A16. A scheme to Leningrad written "Drafted in
Kharkov".
