Memory Map
PXN20 Microcontroller Reference Manual, Rev. 1
A-108 Freescale Semiconductor
0x0688
SIU_GPDO136_139 —GPIO pin data output register 136 – 139
R/W 0x0000_0000 8.3.2.14/8-26
0x068C
SIU_GPDO140_143 —GPIO pin data output register 140 – 143
R/W 0x0000_0000 8.3.2.14/8-26
0x0690
SIU_GPDO144_147 —GPIO pin data output register 144 – 147
R/W 0x0000_0000 8.3.2.14/8-26
0x0694
SIU_GPDO148_151—GPIO pin data output register 148 – 151
R/W 0x0000_0000 8.3.2.14/8-26
0x0698
SIU_GPDO152_154 —GPIO pin data output register 152 – 154
R/W 0x0000_0000 8.3.2.14/8-26
0x0690–0x07FF Reserved
0x0800 SIU_GPDI0_3—GPIO pin data input register 0
–
3R/W
0x0U0U_0U0U
8.3.2.15/8-28
0x0804 SIU_GPDI4_7—GPIO pin data input register 4 – 7 R/W
0x0U0U_0U0U
8.3.2.15/8-28
0x0808 SIU_GPDI8_11—GPIO pin data input register 8 – 11 R/W
0x0U0U_0U0U
8.3.2.15/8-28
0x080C SIU_GPDI12_15—GPIO pin data input register 12 – 15 R/W
0x0U0U_0U0U
8.3.2.15/8-28
0x0810 SIU_GPDI16_19—GPIO pin data input register 16 – 19 R/W
0x0U0U_0U0U
8.3.2.15/8-28
0x0814 SIU_GPDI20_23—GPIO pin data input register 20 – 23 R/W
0x0U0U_0U0U
8.3.2.15/8-28
0x0818 SIU_GPDI24_27—GPIO pin data input register 24 – 27 R/W
0x0U0U_0U0U
8.3.2.15/8-28
0x081C SIU_GPDI28_31—GPIO pin data input register 28 – 31 R/W
0x0U0U_0U0U
8.3.2.15/8-28
0x0820 SIU_GPDI32_35—GPIO pin data input register 32 – 35 R/W
0x0U0U_0U0U
8.3.2.15/8-28
0x0824 SIU_GPDI36_39—GPIO pin data input register 36 – 39 R/W
0x0U0U_0U0U
8.3.2.15/8-28
0x0828 SIU_GPDI40_43—GPIO pin data input register 40 – 43 R/W
0x0U0U_0U0U
8.3.2.15/8-28
0x082C SIU_GPDI44_47—GPIO pin data input register 44 – 47 R/W
0x0U0U_0U0U
8.3.2.15/8-28
0x0830 SIU_GPDI48_51—GPIO pin data input register 48 – 51 R/W
0x0U0U_0U0U
8.3.2.15/8-28
0x0834 SIU_GPDI52_55—GPIO pin data input register 52 – 55 R/W
0x0U0U_0U0U
8.3.2.15/8-28
0x0838 SIU_GPDI56_59—GPIO pin data input register 56 – 59 R/W
0x0U0U_0U0U
8.3.2.15/8-28
0x083C SIU_GPDI60_63—GPIO pin data input register 60 – 63 R/W
0x0U0U_0U0U
8.3.2.15/8-28
0x0840 SIU_GPDI64_67—GPIO pin data input register 64 – 67 R/W
0x0U0U_0U0U
8.3.2.15/8-28
0x0844 SIU_GPDI68_71—GPIO pin data input register 68 – 71 R/W
0x0U0U_0U0U
8.3.2.15/8-28
0x0848 SIU_GPDI72_75—GPIO pin data input register 72 – 75 R/W
0x0U0U_0U0U
8.3.2.15/8-28
0x084C SIU_GPDI76_79—GPIO pin data input register 76 – 79 R/W
0x0U0U_0U0U
8.3.2.15/8-28
0x0850 SIU_GPDI80_83—GPIO pin data input register 80 – 83 R/W
0x0U0U_0U0U
8.3.2.15/8-28
0x0854 SIU_GPDI84_87—GPIO pin data input register 84 – 87 R/W
0x0U0U_0U0U
8.3.2.15/8-28
0x0858 SIU_GPDI88_91—GPIO pin data input register 88 – 91 R/W
0x0U0U_0U0U
8.3.2.15/8-28
0x085C SIU_GPDI92_95—GPIO pin data input register 92 – 95 R/W
0x0U0U_0U0U
8.3.2.15/8-28
0x0860 SIU_GPDI96_99—GPIO pin data input register 96 – 99 R/W
0x0U0U_0U0U
8.3.2.15/8-28
0x0864
SIU_GPDI100_103—GPIO pin data input register 100 – 103
R/W
0x0U0U_0U0U
8.3.2.15/8-28
Table A-4. PXN20 Detailed Register Map (continued)
Address Offset
from Module Base
Register
Access
1
Reset Value
2
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