3DS problem solving
6 Giugno 2020
ZX Spectrum mod composito
30 Giugno 2020
Link rapidi alle sezioni
A/V - Cassette - Seriale - Utente - Alimentazione - Joystick - Espansione
Connettore A/V VIC20 - C16 - Plus4 - C64 - C128
RGB C128
1. Luminanza (S-video Y)
2. GND
3. Audio out
4. Composite video
5. Audio in (max 3 Volt)
6. Chroma (S-video C)
7. N.C.
8. +5V (N.C. nelle prime versioni)
1. GND
2. GND
3. Rosso (RGB)
4. Verde (RGB)
5. Blu (RGB)
6. Intensità
7. Monocromatico
8. Sync orizzontale
9. Sync verticale
Connettore cassette
PET - VIC20 - C64 - C128
A-1. GND
B-2. +5V
C-3. Motore
D-4. (IN) Lettura
E-5. (OUT) Scrittura
F-6. (IN) Sense (tasto premuto)
B-2. +5V
C-3. Motore
D-4. (IN) Lettura
E-5. (OUT) Scrittura
F-6. (IN) Sense (tasto premuto)
C16 - Plus 4
1. GND
2. +5V
3. Motore 4. (IN) Lettura
5. (OUT) Scrittura
6. (IN) Sense (tasto premuto)
7. GND
2. +5V
3. Motore 4. (IN) Lettura
5. (OUT) Scrittura
6. (IN) Sense (tasto premuto)
7. GND
Porta seriale
VIC20 - C64 - C128 - PLUS4 - C16
1. _SRQ
2. GND
3. ATN (Attention)
4. Clock
5. Data
6. _Reset
Porta utente
C64 - C128
| 1 | GND | |
| 2 | +5V | +5V (100 mA max) |
| 3 | /RESET | Reset, usato anche per resettare il device collegato |
| 4 | CNT1 | Countatore1, CIA #1 |
| 5 | SP1 | Porta seriale 1, CIA #1 |
| 6 | CNT2 | Contatore 2, CIA #2 |
| 7 | SP2 | Porta seriale 2, CIA #2 |
| 8 | /PC2 | Handshaking, CIA #2 |
| 9 | ATN | Serial attention in |
| 10 | 9VAC | 9 VAC (100 mA max) |
| 11 | 9VAC | 9 VAC (100 mA max) |
| 12 | GND |
| A | GND | |
| B | /FLAG2 | Flag 2 |
| C | PB0 | Data 0 |
| D | PB1 | Data 1 |
| E | PB2 | Data 2 |
| F | PB3 | Data 3 |
| H | PB4 | Data 4 |
| J | PB5 | Data 5 |
| K | PB6 | Data 6 |
| L | PB7 | Data 7 |
| M | PA2 | PA2 |
| N | GND |
PLUS 4
| 1 | GND | |
| 2 | +5V | +5V (100 mA max) |
| 3 | /RESET | Reset, usato anche per resettare il device collegato |
| 4 | P2 | Data 2 |
| 5 | P3 | Data 3 |
| 6 | P4 | Data 4 |
| 7 | P5 | Data 5 |
| 8 | RCLK | Ricezione Clock |
| 9 | ATN | Serial attention in |
| 10 | 9VAC | 9 VAC (100 mA max) |
| 11 | 9VAC | 9 VAC (100 mA max) |
| 12 | GND |
| A | GND | |
| B | P0 | Data 0 |
| C | RXD | RX data |
| D | Rt0 | Request t0 send |
| E | DTR | Data Terminal Ready |
| F | P7 | Data 7 |
| H | DCD | Data Carrier Detect |
| J | P6 | Data 6 |
| K | P1 | Data 1 |
| L | DSR | DataSet pronto |
| M | TXD | TX data |
| N | GND |
PET
| 1 | GND | |
| 2 | VIDEO | |
| 3 | /SRQ IN | |
| 4 | /EOI | Data 2 |
| 5 | DIAG | Data 3 |
| 6 | #2 CAS RD | Lettura cassette #2 |
| 7 | CAS WR | Scrittura cassette |
| 8 | #1 CAS RD | Lettura cassette #1 |
| 9 | VDRIVE | Drive verticale |
| 10 | HDRIVE | Drive orizzontale |
| 11 | GRAPHIC | 9 VAC (100 mA max) |
| 12 | GND |
| A | GND | |
| B | CA1 | |
| C | PA0 | Data 0 |
| D | PA1 | Data 1 |
| E | PA2 | Data 2 |
| F | PA3 | Data 3 |
| H | PA4 | Data 4 |
| J | PA5 | Data 5 |
| K | PA6 | Data 6 |
| L | V7 | |
| M | CB2 | |
| N | GND |
Connettore alimentazione
C64 - VIC20
1. GND / N.C.
2. GND (nero)
3. GND / N.C.
4. N.C. (Su VIC20: +5V o N.C.)
5. +5V (rosso)
6. 9V ~ (marrone)
7. 9V ~ (bianco)
C128
1. +5V (rosso)
2. GND (nero)
3. 9V ~ (marrone)
4. 9V ~ (bianco)
PLUS4
1. +5V (1A)
2. GND
3. 9V ~ (0,75A)
4. 9V ~
C16
Interno: GND
Esterno: +9V (0,8A)
Porta joystick
VIC20 - C64 - C128
| PIN | PORTA 1 | PORTA 2 (no VIC20) |
DESCRIZIONE |
|---|---|---|---|
| 1 | JOY A0 | JOY B0 | SU |
| 2 | JOY A1 | JOY B1 | GIU |
| 3 | JOY A2 | JOY B2 | SINISTRA |
| 4 | JOY A3 | JOY B3 | DESTRA |
| 5 | POT AY | POT BY | INGRESSO Y |
| 6 | PULS. A | PULS. B | FUOCO |
| 7 | +5 VOLT | +5 VOLT | 100mA MAX |
| 8 | GND | GND | |
| 9 | POT AX | POT BX | INGRESSO X |
C16 - PLUS 4
| PIN | PORTA 1 | PORTA 2 | DESCRIZIONE |
|---|---|---|---|
| 1 | JOY A0 | JOY B0 | SU |
| 2 | JOY A1 | JOY B1 | GIU |
| 3 | JOY A2 | JOY B2 | SINISTRA |
| 4 | JOY A3 | JOY B3 | DESTRA |
| 5 | +5V DC | +5V DC | |
| 6 | PULS. A | PULS. B | FUOCO |
| 7 | GND | GND | |
| 8 | DATA 2 | DATA 1 | SELECT |
Porta espansione
C64
| Pin | Segnale | Direzione (da C64) | Significato |
|---|---|---|---|
| 1 | GND | PWR | Ground |
| 2-3 | +5V DC | PWR | +5V DC |
| 4 | _IRQ | In | Interrupt Request |
| 5 | R/_W | Out | Read or _Write indicator |
| 6 | DOT Clk | Out | Dot clock frequency |
| 7 | _IO1 | Out | Input/Output area 1 indicator |
| 8 | _GAME | In | Game configuration |
| 9 | _EXROM | In | External ROM |
| 10 | _IO2 | Out | Input/Output area 2 indicator |
| 11 | _ROML | Out | ROM Low |
| 12 | BA | Out | Bus Available |
| 13 | _DMA | In | Direct Memory Access |
| 14 | D7 | IO | Data line 7 |
| 15 | D6 | IO | Data line 6 |
| 16 | D5 | IO | Data line 5 |
| 17 | D4 | IO | Data line 4 |
| 18 | D3 | IO | Data line 3 |
| 19 | D2 | IO | Data line 2 |
| 20 | D1 | IO | Data line 1 |
| 21 | D0 | IO | Data line 0 |
| 22-A | GND | PWR | Ground |
| B | _ROMH | Out | ROM High |
| C | _RESET | In | Reset |
| D | _NMI | In | Non Maskable Interrupt |
| E | PHI2 | Out | Phase 2 clock |
| F | A15 | Out | Address line 15 |
| H | A14 | Out | Address line 14 |
| J | A13 | Out | Address line 13 |
| K | A12 | Out | Address line 12 |
| L | A11 | Out | Address line 11 |
| M | A10 | Out | Address line 10 |
| N | A9 | Out | Address line 9 |
| P | A8 | Out | Address line 8 |
| R | A7 | Out | Address line 7 |
| S | A6 | Out | Address line 6 |
| T | A5 | Out | Address line 5 |
| U | A4 | Out | Address line 4 |
| V | A3 | Out | Address line 3 |
| W | A2 | Out | Address line 2 |
| X | A1 | Out | Address line 1 |
| Y | A0 | Out | Address line 0 |
| Z | GND | PWR | Ground |
VIC20
| Pin | Signal | Description | Comment |
|---|---|---|---|
| 1 | GND | Ground | (0 Volt) |
| 2 | D0 | data line 0 | data bus of the computer |
| 3 | D1 | data line 1 | |
| 4 | D2 | data line 2 | |
| 5 | D3 | data line 3 | |
| 6 | D4 | data line 4 | |
| 7 | D5 | data line 5 | |
| 8 | D6 | data line 6 | |
| 9 | D7 | data line 7 | |
| 10 | /BLK 1 | Memory block 1 | Chip select for block 1; active-low, if address on bus is within $2000-$3FFF. |
| 11 | /BLK 2 | Memory block 2 | Chip select for block 2; active-low, if address on bus is within $4000-$5FFF. |
| 12 | /BLK 3 | Memory block 3 | Chip select for block 3; active-low, if address on bus is within $6000-$7FFF. |
| 13 | /BLK 5 | Memory block 5 | Chip select for block 5; active-low, if address on bus is within $A000-$BFFF. |
| 14 | /RAM 1 | RAM 1 | Chip select for RAM (memory area $0400 – $07FF) |
| 15 | /RAM 2 | RAM 2 | Chip select for RAM (memory area $0800 – $0BFF) |
| 16 | /RAM 3 | RAM 3 | Chip select for RAM (memory area $0C00 – $0FFF) |
| 17 | V R/W | VIC Read – /Write | high during read cycle, low during write cycle of the VIC |
| 18 | C R/W | CPU Read – /Write | high during read cycle, low during write cycle of the CPU |
| 19 | /IRQ | Interrupt Request | Interrupt Request Line |
| 20 | NC | not connected | |
| 21 | +5V DC | Supply Voltage +5V DC | + 5 Volt DC. |
| 22 | GND | Ground | (0 Volt) |
| A | GND | Ground | (0 Volt) |
| B | A0 | address line 0 | adress bus of the computer |
| C | A1 | address line 1 | |
| D | A2 | address line 2 | |
| E | A3 | address line 3 | |
| F | A4 | address line 4 | |
| H | A5 | address line 5 | |
| J | A6 | address line 6 | |
| K | A7 | address line 7 | |
| L | A8 | address line 8 | |
| M | A9 | address line 9 | |
| N | A10 | address line 10 | |
| P | A11 | address line 11 | |
| R | A12 | address line 12 | |
| S | A13 | address line 13 | |
| T | /I/O2 | input/output 2 | input/output area 2 ; active low, if address on the bus is within $9800-$9BFF. |
| U | /I/O3 | input/output 3 | input/output area 3 ; active low, if address on the bus is within $9C00-$9FFF. |
| V | SØ2 | S Phi 2 | system clock (1,108MHz for PAL, 1,018MHz for NTSC) |
| W | /NMI | non maskable interrupt | Non Maskable Interrupt Line |
| X | /RESET | Reset | If you pull this line to low, all chips will be re-initialized. The program counter of the CPU will be loaded with the reset-vector $FFFC and $FFFD (usually $FD22). |
| Y | NC | not connected | |
| Z | GND | Ground | (0 Volt) |
C16 - PLUS 4
| PIN | SEGNALE | PIN | SEGNALE |
|---|---|---|---|
| 1 | GND | A | GND |
| 2 | +5V DC | B | C1 Low |
| 3 | +5V DC | C | _Reset |
| 4 | _IRQ | D | RAS |
| 5 | R/_W | E | Ø0 |
| 6 | C1 High | F | A15 |
| 7 | C2 Low | H | A14 |
| 8 | C2 High | J | A13 |
| 9 | _CS1 ($C000-$FFFF) | K | A12 |
| 10 | _CS0 ($8000-$BFFF) | L | A11 |
| 11 | CAS | M | A10 |
| 12 | Mux | N | A9 |
| 13 | BA | P | A8 |
| 14 | D7 | R | A7 |
| 15 | D6 | S | A6 |
| 16 | D5 | T | A5 |
| 17 | D4 | U | A4 |
| 18 | D3 | V | A3 |
| 19 | D2 | W | A2 |
| 20 | D1 | X | A1 |
| 21 | D0 | Y | A0 |
| 22 | AEC | Z | N.C. |
| 23 | Audio in | AA | N.C. |
| 24 | Ø2 | BB | N.C. |
| 25 | GND | CC | GND |
Mirco G
Smanettore tuttofare
