IO / UART

CPU Board 3202D - Sheet 42

• Read IO signal from chip 33G - 0xF81A
• Write command register to UART - 0xA5
• Read command register from UART - 0xA5
• Change IO signal for CONSOLE - IO signal changes to 0xF01A
• Read both IO and UART to see that the data is "or'ed" together - 0xF0BF

Test program verification