Holtek HT49RU80 Manual page 12

Bit No. Label
0 EMI Controls the master (global) interrupt (1=enable; 0=disable)
1 EEI0 Controls the external interrupt 0 (1=enable; 0=disable)
2 EEI1 Controls the external interrupt 1 (1=enable; 0=disable)
3 ET0I Controls the Timer/Event Counter 0 overflow interrupt (1=enable; 0=disable)
4 EIF0 External interrupt 0 request flag (1=active; 0=inactive)
5 EIF1 External interrupt 1 request flag (1=active; 0=inactive)
6 T0F Timer/Event Counter 0 overflow request flag (1=active; 0=inactive)
¾ Unused bit, read as ²0²
7
Bit No. Label
0 ET1I Controls the Timer/Event Counter 1 overflow interrupt (1=enable; 0=disable)
1 EURI Controls the UART TX or RX interrupt (1=enable; 0:disable)
2 EMFI Controls the multi-function interrupt (1=enable; 0:disable)
¾ Unused bit, read as ²0²
3, 7
4 T1F Timer/Event Counter 1 overflow request flag (1=active; 0=inactive)
5 URF UART TX or RX interrupt request flag (1=active; 0=inactive)
6 MFF Multi function interrupt request flag (1=active; 0=inactive)
Bit No. Label
0 ET2I Controls the Timer/Event Counter 2 overflow interrupt (1=enable; 0=disable)
1 ETBI Controls the time base interrupt (1=enable; 0=disable)
2 ERTI Controls the real time clock interrupt (1=enable; 0=disable)
¾ Unused bit, read as ²0²
3, 7
4 T2F Timer/Event Counter 2 interrupt request flag (1=active; 0=inactive)
5 TBF Time base interrupt request flag (1=active; 0=inactive)
6 RTF Real time clock interrupt request flag (1=active; 0=inactive)
Rev. 1.10
Function
INTC0 (0BH) Register
Function
INTC1 (1EH) Register
Function
MFIC (23H) Register
12
HT49RU80/HT49CU80
March 2, 2007