PXN20 Microcontroller Reference Manual, Rev. 1
Introduction
Freescale Semiconductor2-2
0x2000_0000 0x3FFF_FFFF 524,288 Reserved for External Bus
Interface
SRAM (AXBS Ports S2 and S3)
0x4000_0000 0x4007_FFFF 512 SRAM (AXBS Port S2) This 1 MB address
space is mirrored
512 times in the
address range
0x4000_0000 to
0x5FFF_FFFF
> 128 KB
0x4008_0000 0x4009_3FFF 80 SRAM (AXBS Port S3) X
0x4009_4000 0x400F_FFFF 432 Reserved
0x4010_0000 0x5FFF_FFFF 523,264 Mirrored address space
0x6000_0000 0xBFFF_FFFF
1,572,864
Reserved
Peripherals AIPS_A (AXBS Port S6)
0xC000_0000 0xC3EF_FFFF 64,512 Reserved
0xC3F0_0000 0xC3F0_3FFF 16 Reserved
0xC3F0_4000 0xC3F7_FFFF 496 Reserved
0xC3F8_0000 0xC3F8_3FFF 16 Reserved
0xC3F8_4000 0xC3F8_7FFF 16 MLB_DIM Configuration X
0xC3F8_8000 0xC3F8_BFFF 16 I
2
C_C
0xC3F8_C000 0xC3F8_FFFF 16 I
2
C_D
0xC3F9_0000 0xC3F9_3FFF 16 DSPI_C
0xC3F9_4000 0xC3F9_7FFF 16 DSPI_D
0xC3F9_8000 0xC3F9_BFFF 16 Reserved
0xC3F9_C000 0xC3F9_FFFF 16 Reserved
0xC3FA_0000 0xC3FA_3FFF 16 eSCI_J X
0xC3FA_4000 0xC3FA_7FFF 16 eSCI_K X
0xC3FA_8000 0xC3FA_BFFF 16 eSCI_L X
0xC3FA_C000 0xC3FA_FFFF 16 eSCI_M X
0xC3FB_0000 0xC3FB_3FFF 16 Reserved
0xC3FB_4000 0xC3FB_7FFF 16 Reserved
0xC3FB_8000 0xC3FB_BFFF 16 Reserved
0xC3FB_C000 0xC3FB_FFFF 16 Reserved
0xC3FC_0000 0xC3FC_3FFF 16 Reserved
0xC3FC_4000 0xC3FC_7FFF 16 Reserved
0xC3FC_8000 0xC3FC_BFFF 16 Reserved
Table 2-1. PXN20 System Memory Map (continued)
Address
Size
(KB)
Region Name Comments
Unimple-
mented on
PXS20
Unimple-
mented on
PXS21Start End
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