Open Core Protocol Debug Interface Specification rev 1.0 - OCP-IP

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OCP-IP Confidential 44 of 62 © 2007 OCP-IP Association, All Rights Reserved.
OCP-IP Confidential OCP- MCDS Wrappers 2 debug channels A, B active out of N possible channels CHIP PC Software OCP Data/Addr Socket OCP Data Wrapper Memory Mapped Access (can be extended for more than 2 channels) SYS Debug MCDS Core1 Core2 Core3 Debug Regs Debug Regs Debug Regs OCP Trace Compress OCP Debug Wrapper OCP Interconnect OCP-Wrapper Core N … Dual Trace Core 1 Core N … Cross Trigger Core 1 Cerberus Run Control Socket Power, Security Socket Trace Socket Cross-Trigger Socket OSCU System Control JTAG Debug Interface Multi-Core Break Switch Breakpoints, synchronized start/stop OCP Debug Socket TAP TRACE ICE BOX JTAG & TRACE (DAP) OCP-IP CONFIDENTIAL – NOT TO BE DUPLICATED 4 Figure A.5 : OCP/MCDS Wrappers A B A B A B Trace A B JTAG API RDI USB Ethernet Parallel Serial Debug Server API Core1 Debug Core2 Debug Core3 Debug OCP Debug Interface and OSI-Model Borderlines OSI for Debug Information: PHYSICAL LAYER | TRANSPORT LAYER CHIP CORE N CORE 1 CORES OCP- INTERFACE OCP- INTERCONNECT OCP- INTERFACE REGISTER CUSTOM CUSTOM EXTERNAL JTAG TRANSFER DEBUG DEBUG INTERFACE PROTOCOL LOGIC REGISTERS TRACE - OCP DATA - OCP ADDRESS OCP-Bus MCDS MCDS MCDS INTERFACE - OCP CONTROL (SRESP, WIDTH, …) Observer Trace Regs or Bus Observer Core Debug Regs TAP OCP - Wrapper - OCP DATA - OCP ADDRESS - OCP CONTROL (SRESP, WIDTH, …) 4 7 10 5 8 6 9 OCP-DATA SOCKET OCP-DATA SOCKET TAP OCP- JTAG OCP- TRACE OCP-TRIGGER OCP-RUN CONTROL EXT ENDED DEBUG SIGNALS 10 4 5 7 8 6 9 OCP - Wrapper Wrapper ch0 ch1 JTAG Data r/w Cross Trigger Run- Control OCP Debug Signal Classes and their Mapping on the MCDS Interface Instruction Trace (data port / mode port) 0 base address [31:0] / base_mode [2:0] = (idle, valid, forget, invalid); 1 address increment [3:0] / inc_mode [2:0] = (idle, valid, forget, invalid); Data Trace (data port / mode port) 2 address [31:0] / addr_mode [2:0] = (idle, valid, forget, invalid); 3 data [31:0] / data_mode [2:0]=(idle, byte, h_word, word, d_word, forget, none, invalid); 4 control [31:0] / control_mode [2:0] = (idle, write, read, forget); 5 ownership id [7:0] / id_mode [2:0] = (idle, valid, forget, invalid); Bus-Trace Instructions Data MCDS SW-Register Interface TAP TRACE JTAG 3 1 2 1 2 3 CERBERUS Bus-Transactor TAP Manufacturing OCP-IP CONFIDENTIAL – NOT TO BE DUPLICATED Figure A.6 : OCP Debug Interface and OSI Model Borderlines. See page 35, 36, 41, 44. http://en.wikipedia.org/wiki/OSI_model 45 of 62 © 2007 OCP-IP Association, All Rights Reserved.
Page 1 and 2: OCP-IP Confidential Open Core Proto
Page 3 and 4: OCP-IP Confidential Table of Conten
Page 5 and 6: OCP-IP Confidential 1. OCP Debug sp
Page 7 and 8: OCP-IP Confidential 1.2 OCP Debug s
Page 9 and 10: OCP-IP Confidential to facilitate d
Page 11 and 12: OCP-IP Confidential 2.2 Technical s
Page 13 and 14: OCP-IP Confidential does place limi
Page 15 and 16: OCP-IP Confidential Control signals
Page 17 and 18: OCP-IP Confidential Cross-Trigger L
Page 19 and 20: OCP-IP Confidential in target trigg
Page 21 and 22: OCP-IP Confidential Security concep
Page 23 and 24: OCP-IP Confidential tracing is acti
Page 25 and 26: OCP-IP Confidential Restarting core
Page 27 and 28: OCP-IP Confidential Appendix Implem
Page 29 and 30: OCP-IP Confidential - Indirect Bran
Page 31 and 32: OCP-IP Confidential Note that the s
Page 33 and 34: OCP-IP Confidential Example 2. Wire
Page 35 and 36: OCP-IP Confidential A.2.1 OCP Debug
Page 37 and 38: OCP-IP Confidential concurrent with
Page 39 and 40: OCP-IP Confidential • Suspend fun
Page 41 and 42: OCP-IP Confidential A.4.1.5 BCU OCD
Page 43: OCP-IP Confidential Figure A.4 Brea
Page 47 and 48: OCP-IP Confidential Bit Field Width
Page 49 and 50: OCP-IP Confidential B.3.1 EMUx Trig
Page 51 and 52: OCP-IP Confidential If EMU1 is driv
Page 53 and 54: OCP-IP Confidential exist, C-TRIG w
Page 55 and 56: OCP-IP Confidential number. This wi
Page 57 and 58: OCP-IP Confidential Debug & Analysi
Page 59 and 60: OCP-IP Confidential C.2 Nexus Messa
Page 61 and 62: OCP-IP Confidential resources to he

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