MC68HC908GZ16 Datasheet, PDF (226/314 Pages) Motorola, Inc – Microcontrollers

System Integration Module (SIM)
Interrupt Status Register 1
Address: $FE04
Bit 7
6
5
4
3
2
1
Bit 0
Read: I6
I5
I4
I3
I2
I1
0
0
Write: R
R
R
R
R
R
R
R
Reset: 0
0
0
0
0
0
0
0
R
= Reserved
Figure 16-12. Interrupt Status Register 1 (INT1)
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
Address: $FE05
Bit 7
6
5
4
3
2
Read: I14
I13
I12
I11
I10
I9
Write: R
R
R
R
R
R
1
Bit 0
I8
I7
R
R
Reset: 0
0
0
0
0
0
0
0
R
= Reserved
Figure 16-13. Interrupt Status Register 2 (INT2)
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
Address: $FE06
Bit 7
6
5
4
3
2
1
Bit 0
Read: 0
0
I20
I19
I18
I17
I16
I15
Write: R
R
R
R
R
R
R
R
Reset: 0
0
0
0
0
0
0
0
R
= Reserved
Figure 16-14. Interrupt Status Register 3 (INT3)
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
MC68HC908GZ16 • MC68HC908GZ8 Data Sheet, Rev. 1
226
Freescale Semiconductor