Hardware Data and Specifications

16450 16550 6845 765 8042
8250 8253 8254 8259 8272
BUS capacitor values CMOS clock CMOS RAM CRTC
diagnostic codes disk drives drive specifications Epson printer codes FDC
floppy controller game port hard disks drives hard drives hardware ports
Hayes modem info HP Laserjet joystick keyboard commands keyboard controller
Laserjet modem commands NEC 765 parallel port PIC
PIT port addresses ports POST errors printer port
resistor values RS232 pins RTC serial ports timer
UART