NXP Semiconductors K22F series - MDM-AP Control Register

Table 9-4. MDM-AP Register Summary (continued)
0x0100_0000 Status See MDM-AP Status Register
0x0100_0004 Control See MDM-AP Control Register
0x0100_00FC ID Read-only identification register that
always reads as 0x001C_0000
SWJ-DP
SELECT[31:24] (APSEL) selects the AP
SELECT[7:4] (APBANKSEL) selects the bank
A[3:2] from the APACC selects the register
within the bank
AHB Access Port
(AHB-AP)
MDM-AP
Status
0x00
Control
0x01
IDR
0x3F
AHB-AP
SELECT[31:24] = 0x00 selects the AHB-AP
See ARM documentation for further details
MDM-AP
SELECT[31:24] = 0x01 selects the MDM-AP
SELECT[7:4] = 0x0 selects the bank with Status and Ctrl
A[3:2] = 2’b00 selects the Status Register
A[3:2] = 2’b01 selects the Control Register
SELECT[7:4] = 0xF selects the bank with IDR
A[3:2] = 2’b11 selects the IDR Register
(IDR register reads 0x001C_0000)
Bus Matrix
See Control and Status Register
Descriptions
Data[31:0] A[7:4] A[3:2] RnW
APSEL
Decode
Debug Port ID Register (DPIDR)
Control/Status (CTRL/STAT) AP Select (SELECT)
Read Buffer (REBUFF)
DP Registers
0x00 0x04
0x08 0x0C
Data[31:0] A[3:2] RnW
DPACC
Data[31:0] A[3:2] RnW
APACC
Debug Port
(DP)
Generic
See the ARM Debug Interface v5p1 Supplement.
Debug
Port
Internal
Bus
Access
Port
Figure 9-3. MDM AP Addressing
Chapter 9 Debug
K22F Sub-Family Reference Manual, Rev. 4, 08/2016
NXP Semiconductors 205