NXP Semiconductors PXN2020 - 8.3.2.17 IMUX Select Register 2 (SIU_ISEL2)

System Integration Unit (SIU)
PXN20 Microcontroller Reference Manual, Rev. 1
Freescale Semiconductor 8-33
8.3.2.17 IMUX Select Register 2 (SIU_ISEL2)
The SIU_ISEL2 register selects the source for the external interrupt. The selection is made in conjunction
with SIU_ISEL1 and SIU_ISEL2A. Figure 8-72 shows how ISEL1, ISEL2, and ISEL2A interact.
Offset: SIU_BASE + 0x0908 Access: User read/write
0123456789101112131415
R
ESEL15 ESEL14 ESEL13 ESEL12 ESEL11 ESEL10 ESEL9 ESEL8
W
Reset0000000000000000
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
R
ESEL7 ESEL6 ESEL5 ESEL4 ESEL3 ESEL2 ESEL1 ESEL0
W
Reset0000000000000000
Figure 8-20. IMUX Select Register 2 (SIU_ISEL2)
Table 8-22. SIU_ISEL2 Field Descriptions
Field Description
ESEL15 External IRQ Input Select 15. Specifies input for IRQ15.
00 PE15 pin.
01 PF15 pin.
10 PG15 pin.
11 ISEL2A.
ESEL14 External IRQ Input Select 14. Specifies input for IRQ14.
00 PE14 pin.
01 PF14 pin.
10 PG14 pin.
11 ISEL2A.
ESEL13 External IRQ Input Select 13. Specifies input for IRQ13.
00 PE13 pin.
01 PF13 pin.
10 PG13 pin.
11 ISEL2A.
ESEL12 External IRQ Input Select 12. Specifies input for IRQ12.
00 PE12 pin.
01 PF12 pin.
10 PG12 pin.
11 ISEL2A.
ESEL11 External IRQ Input Select 11. Specifies input for IRQ11.
00 PE11 pin.
01 PF11 pin.
10 PG11 pin.
11 ISEL2A.
ESEL10 External IRQ Input Select 10. Specifies input for IRQ10.
00 PE10 pin.
01 PF10 pin.
10 PG10 pin.
11 ISEL2A.