Datasheet

System Integration Module (SIM)
MC68HC908GZ16 • MC68HC908GZ8 Data Sheet, Rev. 4
224 Freescale Semiconductor
Interrupt Status Register 1
I6–I1 — Interrupt Flags 1–6
These flags indicate the presence of interrupt requests from the sources shown in Table 16-3.
1 = Interrupt request present
0 = No interrupt request present
Bit 0 and Bit 1 — Always read 0
Interrupt Status Register 2
I14–I7 — Interrupt Flags 14–7
These flags indicate the presence of interrupt requests from the sources shown in Table 16-3.
1 = Interrupt request present
0 = No interrupt request present
Interrupt Status Register 3
Bits 7–6 — Always read 0
I20–I15 — Interrupt Flags 20–15
These flags indicate the presence of an interrupt request from the source shown in Table 16-3.
1 = Interrupt request present
0 = No interrupt request present
Address: $FE04
Bit 7654321Bit 0
Read:I6I5I4I3I2I10 0
Write:RRRRRRRR
Reset:00000000
R= Reserved
Figure 16-12. Interrupt Status Register 1 (INT1)
Address: $FE05
Bit 7654321Bit 0
Read: I14 I13 I12 I11 I10 I9 I8 I7
Write:RRRRRRRR
Reset:00000000
R= Reserved
Figure 16-13. Interrupt Status Register 2 (INT2)
Address: $FE06
Bit 7654321Bit 0
Read: 0 0 I20 I19 I18 I17 I16 I15
Write:RRRRRRRR
Reset:00000000
R= Reserved
Figure 16-14. Interrupt Status Register 3 (INT3)