RM0453 Rev 1 1339/1461
RM0453 Debug support (DBG)
1448
38.4.7 DP resend register (DP_RESENDR)
Address offset: 0x08
Reset value: 0x0000 0000
38.4.8 DP access port select register (DP_SELECTR)
Address offset: 0x08
Reset value: 0xXXXX XXXX
Bits 31:28 TINSTANCE[3:0]: target instance number
Defines the instance number for this device in a multi-drop system.
0x0: Instance number 0
Bits 27:4 Reserved, must be kept at reset value.
Bits 3:0 PROTSVN[3:0]: Serial-wire debug protocol version
0x1: Version 2
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
RESEND[31:16]
rrrrrrrrrrrrrrrr
1514131211109876543210
RESEND[15:0]
rrrrrrrrrrrrrrrr
Bits 31:0 RESEND[31:0]: Returns the value that was returned by the last AP read or DP_RDBUFFR
read.
Used in the event of a corrupted read transfer.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
APSEL[3:0] Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res. Res.
ww w w
1514131211109876543210
Res. Res. Res. Res. Res. Res. Res. Res. APBANKSEL[3:0] DPBANKSEL[3:0]
wwwwwwww
Bits 31:28 APSEL[3:0]: access port selection
Selects the access port for the next transaction.
0x0: AP0 - CPU1 (Cortex-M4) debug access port (AHB-AP)
0x1: AP1 - CPU2 (Cortex-M0+) debug access port (AHB-AP)
0x2 to 0xF: reserved
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