Table 13-6 Selected Pin Protocol Register Bit Assignments; Figure 13-5 Selected Pin Protocol Register Bit Assignments - ARM Cortex-M3 Technical Reference Manual

Trace Port Interface Unit
13-10
Selected Pin Protocol Register
Use the Selected Pin Protocol Register to select which protocol to use for trace output.
The register address, access type, and Reset state are:
Address
0xE00400F0
Access Read/write
Reset state
0x01
Figure 13-5 shows the fields of the Selected Pin Protocol Register.

Figure 13-5 Selected Pin Protocol Register bit assignments

Table 13-6 describes the fields of the Selected Pin Protocol Register.
Field Name
[31:2] -
[1:0] PROTOCOL
Note
If this register is changed while trace data is being output, data corruption occurs.
Formatter and Flush Status Register
Use the Formatter and Flush Status Register to read the status of TPIU formatter.
The register address, access type, and Reset state are:
Address
0xE0040300
Access Read only
Reset state 0x08
Copyright © 2005, 2006 ARM Limited. All rights reserved.

Table 13-6 Selected Pin Protocol Register bit assignments

Definition
Reserved.
00 - TracePort mode
01 - SerialWire Output (Manchester). This is the reset value.
10 - SerialWire Output (NRZ)
11 - Reserved
ARM DDI 0337B