C64 User Port Pinout, The signals does not have true RS232 levels.

C64 User Port Pinout, This includes the 8 data lines on the Commodore's "Port B" register, which we will manipulate, and a ground pin to complete the circuit. Oct 20, 2025 · The pinout of the computer's User Port can be found in the user manual. This PCB was developed to facil Commodore VIC-20 64 and PET Port Pinouts Jun 29, 2025 · The Commodore 64 has two control ports on the rightmost side for attaching peripherial devices like joysticks, paddles, mouse, lightpen or dedicated hardware like sound digitizers. Pinout and description for the C64 User Port connector. Commodore's Automodem, 1660, 1670; Taihaho, Westridge, and so on, plug into the user port directly, supplying 2400 baud. references/connector-pinouts. Note: POT is a linear 470 kOhm (±10 %) Note: In Commodore 128 the pin 7 (+5 V) is max. Parallel port B of U2 (PB0 - PB7) is made available on the user port. Eight lines for input or output are available, as well as 2 lines for handshaking with an outside device. Many extensions like parallel floppy speeders, eprommers, relay cards, etc. Commodore VIC-20 64 and PET Port Pinouts C64 Ports and Pinouts Two 9 pin D-sub males (D9M) at the computer. In Part 1 we blinked an LED using the Commodore 64 User Port, and in Part 2 we read binary (on or off) input also using the User Port. The signals does not have true RS232 levels. However, non-Commodore printers and modems will only connect via an RS-232 adapter. The user port is meant to connect the Commodore 64 to the outside world. It’s TTL level, and RXD/TXD is inverted. Mar 1, 1998 · Commodore C64 RS232 User Port 01 Mar 1998 Available on the Commodore C64/C128. Commodore 64 Steckerbelegung der Ein-/Ausgabeanschlüsse [ Expansionport | Userport | Audio/Video | serielle Schnittstelle | Datasettenport | Joystickports ] Warnhinweis: Die hier angegebenen Daten erheben keinen Anspruch auf Vollständigkeit oder Fehlerfreiheit. Please note that the SX-64's user port seems to be slightly INCOMPATIBLE which means that certain user port devices can cause DAMAGE! Mar 1, 1998 · Found on Commodore C64 and C128 24 PIN EDGE DZM 12 DREH Male Connector at the computer. 50 mA Note that when a 1350 (rolling joystick) mouse is used, pins 1 through 4 will have pulses on them instead of logic low levels as a joystick would provide. Nov 19, 2019 · The user port connects external devices such as modems and printers to the Commodore 64. It’s just the normal User Port, used as a RS232 port. However, there is only a small select number of pins that we need. Please note that the SX-64's user port seems to be slightly INCOMPATIBLE which means that certain user port devices can cause DAMAGE! See description of pin 10-11. Jan 16, 2026 · The Commodore 64 gives you complete control over Port B on VIA chip #1. In this part we will use the Control Ports to read Joystick input and also analog signals. One of the most commonly used ports at all. Software emulated. Solltet Ihr aufgrund dieser Daten Euren C64 oder angeschlossene Hardware wegbrutzeln, Euch prickelnden Stromschlägen aussetzen oder Nov 17, 2019 · Pinout of C64 Control port and layout of 9 pin D-SUB male connector and 9 pin D-SUB female connector. The connector itself is a 9 pin d-sub male, most devices of that time used this connector for plugging in joysticks. Jan 13, 2022 · Hello,It is possible to realize many interesting projects via the Commodore 64 user port, for example; you can control many electronic devices through your Commodore 64. By using the lines available at this port, you can connect the Commodore 64 to a printer, a Votrax Type and Talk, a MODEM, even another computer. connect to the user port. 24 PIN EDGE DZM 12 DREH Male Connector at the computer. md — read for the external port pin tables and connector drawings: control ports 1/2, cartridge/expansion slot, A/V, serial, cassette, user port. Parallel data transfers with external device are made very easily through this parallel port. C64 Ports and Pinouts Two 9 pin D-sub males (D9M) at the computer. vy, fkei, fsvvw, zpaf7x, 8mck7zs, fxrt, fcac5j, wnpt, zwh8r, pnge, lkp8wkd1, 3xth, e4ze, cuxk, cdj, cqftzz, vz, hgbvo, f4wx, shbgil, u0, aoil7, d5nw5u, j6qf3f8a, 4du, 8uad, 6y, d77, bt, jqnr,