Tag: enhanced bus

7 matching upgrades

Showing 7 products.

Status	Product	What it does	Compatibility	Links
AvailableChecked Jul 24, 2026	32K / 64K RAM Moduleby Z80 Kits ram 64k paging cpm rc2014 standard bus enhanced bus kit	Adds up to the Z80's full 64K addressable RAM with selectable start address. Current kits are offered with 32K or 64K and Standard or Enhanced Bus headers. The listing is for the memory module only; a CP/M setup also needs the documented Pageable ROM and other core modules. Sources Z80 Kits 64K RAM page	RC2014 modular systems Stated family	Vendor product page Official module documentation
AvailableChecked Jul 24, 2026	Dual Clock and Reset Moduleby Z80 Kits clock reset single step rc2014 standard bus enhanced bus kit	Adds selectable CPU and peripheral clock rates plus supervised power-on reset. Current kits include a 7.3728 MHz single-speed version and a multispeed version. A DS1233 reset monitor holds the CPU in reset while power stabilizes and a button provides manual reset. The optional manual clock switch is not supplied. Sources Z80 Kits Dual Clock page	RC2014 modular systems Stated family	Vendor product page Official module documentation
AvailableChecked Jul 24, 2026	Pageable ROM Moduleby Z80 Kits rom eprom eeprom paging cpm rc2014 standard bus enhanced bus kit	Adds flexible ROM sizing and the ability to page ROM out for a full 64K of RAM. Current options include a standard or ZIF socket and optional blank or programmed PROMs. The base kit excludes a ROM. A ZIF release bar can foul a nearby logic chip unless the chip is lowered, the socket is reversed, or the bar is shortened. 28C EEPROM support is described as untested. Sources Z80 Kits Pageable ROM page	RC2014 modular systems Stated family	Vendor product page Official module documentation
AvailableChecked Jul 24, 2026	RP2040 and Pi Pico VGA Terminal Familyby Z80 Kits vga usb keyboard rp2040 micro sd standard bus enhanced bus firmware kit	Adds an 80-column VGA serial terminal with USB keyboard input, a buzzer, and microSD support to an RC2014. The optional SD backpack is only for the earlier Pi Pico VGA Terminal. It requires PicoTerm 1.6.0 or later, can be ordered with its surface-mount socket preinstalled, and does not include the Pi Pico itself. Sources Z80 Kits RP2040 VGA Terminal page Z80 Kits Pi Pico SD Backpack page	RC2014 modular systems Stated family	Vendor product page Official module documentation Earlier Pi Pico terminal Pi Pico SD backpack
Build itChecked Jul 24, 2026	SC152 Memory Moduleby Small Computer Central flash rom ram bank switching paged memory rc2014 cpm standard bus enhanced bus open hardware	Combines 128K of Flash ROM and 128K of paged RAM for RC2014 systems, including CP/M configurations. The project page provides firmware, a schematic, PCB files, Gerbers, and supplier links. A later SC707 design also exists, but SC152 remains documented and buildable. Keep the Flash write-protect jumper in its normal read-only position except when programming it. Sources SC152 Memory Module project page	RC2014 modular systems Stated family	Official project page
AvailableChecked Jul 24, 2026	SIO/2 Dual Serial Moduleby Z80 Kits serial sio2 uart rc2014 standard bus enhanced bus clock kit	Adds two Zilog SIO/2 serial ports for terminals, printers, and other devices. Current kits are offered for Standard or Enhanced Bus. The Standard version includes a 20-pin header exposing CLK2, TX2, and RX2. Jumpers can allow either FTDI connection to power the RC2014. Sources Z80 Kits SIO/2 Serial page	RC2014 modular systems Stated family	Vendor product page Official module documentation
AvailableChecked Jul 24, 2026	Z80 CPU Moduleby Z80 Kits z80 cpu rc2014 standard bus enhanced bus zif socket kit	Provides a replaceable Z80 processor module with optional advanced bus signals. The current kit does not include a ZIF socket. On the Standard Bus option, a separate ten-pin header exposes /NMI, /WAIT, /BUSRQ, and /BUSACK. Sources Z80 Kits Z80 CPU page	RC2014 modular systems Stated family	Vendor product page Official module documentation