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4.3. XDP Debug header
The debug port is a connection into a target-system environment that provides access to JTAG, run control, system control, and observation
resources. The XDP target system connector is a Samtec™ 60-pin BSH-030-01 series connector.
Pin XDP Signal Target Signal I/O Device Pin XDP Signal Target Signal I/O Device
1 GND GND NA 2 GND GND NA
3 OBSFN_A0 PREQ# I/O Processor 4 OBSFN_C0 CFG[17]
2
I Processor
5 OBSFN_A1 PRDY# I/O Processor 6 OBSFN_C1 CFG[16] 2 I Processor
7 GND GND NA 8 GND GND NA
9 OBSDATA_A0 CFG[0] 2 I/O Processor 10 OBSDATA_C0 CFG[8] 2 I/O Processor
11 OBSDATA_A1 CFG[1]
2
I/O Processor 12 OBSDATA_C1 CFG[9]
2
I/O Processor
13 GND GND NA 14 GND GND NA
15 OBSDATA_A2 CFG[2]
2
I/O Processor 16 OBSDATA_C2 CFG[10]
2
I/O Processor
17 OBSDATA_A3 CFG[3] 2 I/O Processor 18 OBSDATA_C3 CFG[11] 2 I/O Processor
19 GND GND NA 20 GND GND NA
21 OBSFN_B0 BPM#[0] 1 I/O Processor 22 OBSFN_D0 CFG[19] 2 I/O Processor
23 OBSFN_B1 BPM#[1]
1
I/O Processor 24 OBSFN_D1 CFG[18]
2
I/O Processor
25 GND GND NA 26 GND GND NA
27 OBSDATA_B0 CFG[4]
2
I/O Processor 28 OBSDATA_D0 CFG[12]
2
I Processor
29 OBSDATA_B1 CFG[5] 2 I/O Processor 30 OBSDATA_D1 CFG[13] 2 I Processor
31 GND GND NA 32 GND GND NA
33 OBSDATA_B2 CFG[6] 2 I/O Processor 34 OBSDATA_D2 CFG[14] 2 I/O Processor
35 OBSDATA_B3 CFG[7]
2
I/O Processor 36 OBSDATA_D3 CFG[15]
2
I/O Processor
37 GND GND NA 38 GND GND NA
39 HOOK0 PWRGOOD I System 40 ITPCLK/HOOK4 Open NA
41 HOOK11 BP_PWRGD_RST# O System 42 ITPCLK#/HOOK5 Open NA
43 VCC_OBS_AB VCCIO_OUT I System 44 VCC_OBS_CD VCCIO_OUT I System
45 HOOK2 PWR_DEBUG O Processor 46 HOOK6/RESET# PLTRSTIN# I System
47 HOOK3 PCH_SYS_PWROK O System 48 HOOK7/DBR# DBR# O System
49 GND GND NA 50 GND GND NA
51 SDA1 SDA I/O System 52 TDO TDO I Processor
53 SCL1 SCL I/O System 54 TRSTn TRST# O Processor
55 TCK1 Open NA 56 TDI TDI O Processor
57 TCK0 TCK O Processor 58 TMS TMS O Processor
59 GND GND NA 60 GND GND (or XDP_PRESENT#
if required) NA
Notes:
1. These signals are optional, can be left as OPEN/No-Connect if debug by Intel will not be needed.
2. These CFG signals can be left as Open/No Connect if not used as a strapping signal and top side probe will be used to debug
processor.
Refer to the "Shark Bay, Denlow and Broadwell U/Y Platforms Debug Port Design Guide", Document Number: 479493, Revision: 2.0