Memory Map
PXN20 Microcontroller Reference Manual, Rev. 1
Freescale Semiconductor A-47
0x12C0 TCD22—eDMA transfer control descriptor 22 R/W —
1
24.3.2.17/24-23
0x12E0 TCD23—eDMA transfer control descriptor 23 R/W —
1
24.3.2.17/24-23
0x1300 TCD24—eDMA transfer control descriptor 24 R/W —
1
24.3.2.17/24-23
0x1320 TCD25—eDMA transfer control descriptor 25 R/W —
1
24.3.2.17/24-23
0x1340 TCD26—eDMA transfer control descriptor 26 R/W —
1
24.3.2.17/24-23
0x1360 TCD27—eDMA transfer control descriptor 27 R/W —
1
24.3.2.17/24-23
0x1380 TCD28—eDMA transfer control descriptor 28 R/W —
1
24.3.2.17/24-23
0x13A0 TCD29—eDMA transfer control descriptor 29 R/W —
1
24.3.2.17/24-23
0x13C0 TCD30—eDMA transfer control descriptor 30 R/W —
1
24.3.2.17/24-23
0x13E0 TCD31—eDMA transfer control descriptor 31 R/W —
1
24.3.2.17/24-23
0x1400–0x3FFF Reserved
0xFFF4_8000
INTC
Chapter 10, Interrupts and Interrupt Controller (INTC)
0x0000 INTC_MCR—INTC module configuration register R/W 0x0000_0000 10.3.2.1/10-9
0x0004 Reserved
0x0008 INTC_CPR_PRC0—INTC current priority register for 
processor 0 (Z6)
R/W 0x0000_000F 10.3.2.2/10-10
0x00C INTC_CPR_PRC1—INTC current priority register for 
processor 1 (Z0)
R/W 0x0000_000F 10.3.2.3/10-12
0x0010 INTC_IACKR_PRC0—INTC interrupt acknowledge register 
for processor 0 (Z6)
R/W 0x0000_0000 10.3.2.4/10-12
0x0014 INTC_IACKR_PRC1—INTC interrupt acknowledge register 
for processor 1 (Z0)
R/W 0x0000_0000 10.3.2.5/10-14
0x0018 INTC_EOIR_PRC0—INTC end of interrupt register for 
processor 0 (Z6)
W 0x0000_0000 10.3.2.6/10-14
0x001C INTC_EOIR_PRC1—INTC end of interrupt register for 
processor 1 (Z0)
W 0x0000_0000 10.3.2.7/10-15
0x0020 INTC_SSCIR0_3—INTC software set/clear interrupt register 
0–3 
R/W 0x0000_0000 10.3.2.8/10-15
0x0024 INTC_SSCIR4_7—INTC software set/clear interrupt register 
4–7
R/W 0x0000_0000 10.3.2.8/10-15
0x0028–0x003F Reserved
0x0040 INTC_PSR0_3—INTC priority select register 0–3 R/W 0x0000_0000 10.3.2.9/10-16
0x0044 INTC_PSR4_7—INTC priority select register 4–7 R/W 0x0000_0000 10.3.2.9/10-16
0x0048 INTC_PSR8_11—INTC priority select register 8–11 R/W 0x0000_0000 10.3.2.9/10-16
Table A-4. PXN20 Detailed Register Map (continued)
Address Offset 
from Module Base
Register
Access
1
Reset Value
2
Section/Page