System Integration Unit (SIU)
PXN20 Microcontroller Reference Manual, Rev. 1
Freescale Semiconductor 8-51
8.3.2.34 Parallel GPIO Pin Data Input Register 2 (SIU_PGPDI2)
Reads to the SIU_PGPDI2 register provide the parallel GPIO pin data input for PE0:PE15 and PF0:PF15.
Writes have no effect.
Reads of this register are coherent with the registers SIU_GPDI64_67, SIU_GPDI68_71,
SIU_GPDI72_75, SIU_GPDI76_79, SIU_GPDI80_83, SIU_GPDI84_87, SIU_GPDI88_91, and
SIU_GPDI92_95.
8.3.2.35 Parallel GPIO Pin Data Input Register 3 (SIU_PGPDI3)
Reads to the SIU_PGPDI2 register provide the parallel GPIO pin data input for PG0:PG15 and PH0:PH15.
Writes have no effect.
Reads of this register are coherent with the registers SIU_GPDI96_99, SIU_GPDI100_103,
SIU_GPDI104_107, SIU_GPDI108_111, SIU_GPDI112_115, SIU_GPDI116_119, SIU_GPDI120_123,
and SIU_GPDI124_127.
Offset: SIU_BASE + 0x0C44 Access: User read-only
0 1 2 3 4 5 6 7 8 9 101112131415
R PC0:PC15
W
ResetUUUUUUUUUUUUUUUU
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
R PD0:PD15
W
ResetUUUUUUUUUUUUUUUU
Figure 8-41. Parallel GPIO Pin Data Input Register 1 (SIU_PGPDI1)
Offset: SIU_BASE + 0x0C48 Access: User read-only
0 1 2 3 4 5 6 7 8 9 101112131415
R PE0:PE15
W
ResetUUUUUUUUUUUUUUUU
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
R PF0:PF15
W
ResetUUUUUUUUUUUUUUUU
Figure 8-42. Parallel GPIO Pin Data Input Register 2 (SIU_PGPDI2)