Datasheet

Interrupts
MC68HC908GR16 Data Sheet, Rev. 5.0
Freescale Semiconductor 145
13.3.3.1 Interrupt Status Register 1
IF6–IF1 — Interrupt Flags 6–1
These flags indicate the presence of interrupt requests from the sources shown in Table 13-2.
1 = Interrupt request present
0 = No interrupt request present
Bit 1 and Bit 0 — Always read 0
13.3.3.2 Interrupt Status Register 2
IF14–IF7 — Interrupt Flags 14–7
These flags indicate the presence of interrupt requests from the sources shown in Table 13-2.
1 = Interrupt request present
0 = No interrupt request present
13.3.3.3 Interrupt Status Register 3
IF16–IF15 — Interrupt Flags 20–15
This flag indicates the presence of an interrupt request from the source shown in Table 13-2.
1 = Interrupt request present
0 = No interrupt request present
Bits 7–2 — Always read 0
Address: $FE04
Bit 7654321Bit 0
Read: IF6 IF5 IF4 IF3 IF2 IF1 0 0
Write:RRRRRRRR
Reset:00000000
R = Reserved
Figure 13-6. Interrupt Status Register 1 (INT1)
Address: $FE05
Bit 7654321Bit 0
Read: IF14 IF13 IF12 IF11 IF10 IF9 IF8 IF7
Write:RRRRRRRR
Reset:00000000
R = Reserved
Figure 13-7. Interrupt Status Register 2 (INT2)
Address: $FE06
Bit 7654321Bit 0
Read:000000IF16IF15
Write:RRRRRRRR
Reset:00000000
R = Reserved
Figure 13-8. Interrupt Status Register 3 (INT3)