The following table shows the peripherals region of the N1 SDP SCP memory map. Undefined locations
of the memory map are reserved. Software must not attempt to access these locations.
Table 4-6 SCP peripherals memory map
Address range
Size
Description
From
To
0x00_4400_0000 0x00_4400_0FFF
4KB
REFCLK CNTCTL
0x00_4400_1000 0x00_4400_1FFF
4KB
REFCLK CNTBase0
0x00_4400_2000 0x00_4400_2FFF
4KB
SCPUART
0x00_4400_6000 0x00_4400_6FFF
4KB
Watchdog (SP805)
0x00_4400_A000 0x00_4400_AFFF
4KB
CS CNTCONTROL
0x00_4410_0000 0x00_4C10_FFFF
64KB
REFCLK general timer control
0x00_4411_0000 0x00_4C41_FFFF
64KB
Cluster 0 time frame
0x00_4412_0000 0x00_4C12_FFFF
64KB
Cluster 1 time frame
0x00_4500_0000 0x00_4501_FFFF
128KB AP2SCP
Message Handling Unit
(MHU)
0x00_452C_0000 0x00_452D_FFFF
128KB AP2SCP MHU Non-secure RAM
0x00_4540_0000 0x00_4541_FFFF
128KB AP2SCP MHU Secure RAM
0x00_4560_0000 0x00_4560_FFFF
64KB
SCP2MCH MHU
0x00_4561_0000 0x00_4561_FFFF
64KB
SCP2MCP MHU Non-secure RAM
0x00_4562_0000 0x00_4562_FFFF
64KB
SCP2MCP MHU Secure RAM
0x00_4563_0000 0x00_45FF_FFFF
64KB
Reserved
4.2.7
CoreSight
™
system memory map
The N1 SDP Application Processor (AP) memory map contains a region that is associated with the
CoreSight debug and trace.
The following figure shows the CoreSight debug and trace memory map.
4 Programmers model
4.2 N1 SDP memory maps
101489_0000_02_en
Copyright © 2019, 2020 Arm Limited or its affiliates. All rights
reserved.
4-90
Non-Confidential - Beta