Changes
/* I/O Ports */
F8E0h - [[Z80-STI]] Indirect Data Register
F8E1h - [[Z80-STI]] General Purpose I/O Data Register F8E2h - [[<s>Z80-STI]] Interrupt Pending Register B </s> ;\ F8E3h - [[<s>Z80-STI]] Interrupt Pending Register A </s> ; F8E4h - [[<s>Z80-STI]] Interrupt in-Service Register B </s> ; not used F8E5h - [[<s>Z80-STI]] Interrupt in-Service Register A </s> ; F8E6h - [[<s>Z80-STI]] Interrupt Mask Register B </s> ; F8E7h - [[<s>Z80-STI]] Interrupt Mask Register A </s> ;/ F8E8h - [[Z80-STI]] Indirect Index and Interrupt Vector Register F8E9h - [[<s>Z80-STI]] Timers A and B Control Register </s> ;\ F8EAh - [[<s>Z80-STI]] Timer B Data Register </s> ; not used F8EBh - [[<s>Z80-STI]] Timer A Data Register </s> ;/ F8ECh - [[Z80-STI]] USART Control Register F8EDh - [[Z80-STI]] Receiver Status Register F8EEh - [[Z80-STI]] Transmitter Status Register F8EFh - [[Z80-STI]] USART Data Register
Aside from the above 16 directly addressable registers, there are 8 indirectly addressable ones. For details on the direct & indirect registers, see [[Z80-STI]].