Can you help getting more info about those carts?
| Unique visits: 7938 Can you help getting more info about those carts? |
|  |
| Name | Value |
|---|---|
| IC1 | not soldered(27F080) |
| IC2 | 6264A |
| IC3 | 16V8 |
| IC4 | LM386?- |
| IC5 | 74139 |
| IC6 | 7474 |
| IC7 | AX5202P(MMC3) |
| IC8 | DIL16 |
| C1 | 100n |
| C10 | 1n |
| C11 | 10u/25V |
| C2 | 100n |
| C3 | 100n |
| C4 | 100n |
| C5 | 100n |
| C6 | 100n |
| C7 | 1n |
| C8 | 1n |
| C9 | 1n |
| CART1 | FAMICOM_CART |
| JP1 | 2-3 |
| JP2 | PINHD-1X8 |
| JP3 | SOLDER |
| R1 | 1k |
| R10 | 5.1k |
| R2 | 10k |
| R3 | 1k |
| R4 | 10k |
| R5 | 10k |
| R6 | 10k |
| R7 | 160k |
| R8 | 10 |
| R9 | 5.1k |
https://forums.nesdev.org/viewtopic.php?p=229537#p229537
n4C04 = (!M2) | (!CPU_nROMSEL) | (!CPU_A14) | (!CPU-A2) | (CPU_A8) | (nC00) | (CPU_A13);
111111
a 5432109876543210
mask 1111110100000111 FD07
val 0100110000000100 4C04
O4 <= D6 when M2=1 & nROMSEl=1 & A14=1 & A13=0 & nC00=0 & A8=0 & A2=0 & A1=0 & A0=1
O2 <= D6 when M2=1 & nROMSEl=1 & A14=1 & A13=0 & nC00=0 & A8=0 & A2=0 & A1=0 & A0=1
O3 <= D6 when M2=1 & nROMSEl=1 & A14=1 & A13=0 & nC00=0 & A8=0 & A2=0 & A1=0 & A0=0
D7 <= INA when M2=1 & nROMSEl=1 & A14=1 & A13=0 & nC00=0 & A8=0 & A2=0 & A1=1 & A0=1 else 'Z'
$4c01 (o2/o4) ; o4-on data
$4c00 (o1/o3) ; o3-on data
PRG-A19
$8000 $a000 $c000 $e000
O3=0, O4=0 0 0 1 1
O3=0, O4=1 0 1 1 1
O3=1, O4=0 1 0 1 1
O3=1, O4=1 1 1 1 1
--------------------------------------------------------------------
Mask: $fd07
$4C00 (w): [.P.. ....] - sets outer 512 kB PRG-bank for $8000
$4C01 (w): [.P.. ....] - sets outer 512 kB PRG-bank for $a000 (at $c000 and $e000 last outer bank is selected)
$4C02 - nothing
$4C03 (r): [I... ....] - I=value of INA pin, .=OPEN BUS
$4c04 (w): [.... ....] - outputs 0 on OUTA (clock)
$4c05 (w): [.... ....] - outputs 1 on OUTA (clock)
$4c06 (w): [.... ....] - outputs 0 on OUTB (data)
$4c07 (w): [.... ....] - outputs 1 on OUTB (data)
Hardware logic does not distinguish between read/write cycle.
--------------------------------------------------------------------
$4900 = #$e6
$491f <- #$0
$7e7 <- ~$491f
$491f <- #$1
$7e8 <- ~$491f
..
$491f <- #$a
$7f1 <- ~$491f
$4905 <- #$82
--7-- --6-- --5-- --4-- --3-- --2-- --1-- --0--
--0-- ----- ----- ----- ----- ----- ----- ----- -----
--1-- ----- ----- ----- ----- ----- ----- ----- -----
--2-- ----- ----- ----- ----- RIGHT ----- ----- -----
--3-- ----- ----- ----- ----- ----- ----- ----- -----
--4-- DOWN- ----- ----- ----- LEFT- UP--- ----- -----
--5-- ----- ----- ----- ----- ----- ----- ----- -----
--6-- ----- ----- ----- ----- ----- ----- ----- -----
--7-- ----- ----- ----- ----- ----- ----- ----- -----
--8-- ----- ----- ----- ----- ----- ----- ----- -----
--9-- ----- ----- ----- ----- ----- ----- ----- -----
-10-- ----- ----- ----- ----- ----- ----- ----- -----
----7---- ----6---- ----5---- ----4---- ----3---- ----2---- ----1---- ----0----
--0-- V 5 E F2 C F G 4
--1-- X 3 W F1 END S D 2
--2-- HOME DELETE PRIOR F8 RIGHT NEXT BACK INSERT
--3-- PERIOD 0 6 F5 COMMA L I 9
--4-- DOWN BACKSLASH LBRACKET F7 LEFT UP RETURN RBRACKET
--5-- LCONTROL 1 A ESCAPE TAB Z CAPITAL Q
--6-- J 8 U F4 M K Y 7
--7-- LSHIFT EQUALS P F6 SLASH APOSTROPHE SEMICOLON MINUS
--8-- B 6 R F3 SPACE N H T
--9-- NUMPAD2 NUMPAD8 NUMPAD4 GRETURN NUMPAD6
-10-- NUMPAD8 NUMPAD2 NUMPAD1 F12 F11 NUMPAD7 NUMPAD4 LMENU
--0-- NUMLOCK DIVIDE NUMPAD5 F10 NUMPAD9 MULTIPLY ADD SUBTRACT
--0-- NUMPAD0 DECIMAL NUMPAD3 F9 SPACE PAUSE NUMPAD6 GRAVE
(0=key pressed)
$4900 != $e6
$4904 <- #$0
$7e7 <- ~$4906
..
$4904 <- #$b
$7f2 <- ~$4906
$4905 <- #$82
+--------+
RESET? GND-100nF- | 01 16 | GND
VCC | 02 15 | VCC
GND | 03 14 | SND-
OUTB | 04 13 | VCC
INB | 05 12 | SND+
OUTA | 06 11 | GND
GND | 07 10 | -R-+ 160k (clock generator?)
INA | 08 09 | ---+
+--------+
$4904 (w): [aaaa aaaa] - set offset to internal keyboard's memory ($0-$b)
$4906 (r): [kkkk kkkk] - read keys from internal keyboard's memory at offset written to $4904
$491f (w): ?
$491f (r): ?
$4905 (w) : ?
$4900 (r) : ?status
power-up:
0000000000000111 0007
0000000000000001 0001
0000000000000101 0005
apple:
0010100000000011 2803
0000000001000011 0043
0010100000000011 2803
0100011111010000 47D0
kicks:
0010100000000011 2803
0000000001000011 0043
0010100000000011 2803
0101101111010000 5BD0
tree:
0010100000000011 2803
0000000001000011 0043
0010100000000011 2803
0001011100110000 1730
the apple kicks the tree:
0010100000000011 2803
0000000001000011 0043
0010100000000011 2803
0100110011100000 4CE0 //the
..
0100011111010000 47D0 //apple
..
0100110011100000 4CE0 //Comments: