Spectrum Brands C6x VME64 7 JTAG Debugging

Spectrum Signal Processing Monaco Technical Reference

JTAG Debugging

Part Number 500-00191 37

Revision 2.00

7 JTAG Debugging

The Monaco board supports JTAG in-circuit emulation from a built in 74ACT8990 Test

Bus Controller. The 74ACT8990 Test Bus Controller permits the VME interface to

operate the JTAG chain. There are also two JTAG connectors for an XDS510 or White

Mountain debugger, JTAG IN (J1) and JTAG OUT (J2), which can route the JTAG

chain off-board.

JTAG in-circuit emulation is fed to the Test Bus Controller from the VME A24

secondary interface. C source debugging using an emulator board running a debug

monitor on an adjacent computer is supported through the JTAG IN connector. If a

JTAG IN connection with a clock signal is present the Test Bus Controller is

automatically disconnected.

JTAG data lines are routed to each available ‘C6x node. The full JTAG chain is shown

in the following diagram. Unpopulated processor nodes are bypassed.

The JTAG IN input is buffered to reduce the load on an external JTAG device. The

JTAG OUT output is buffered to guarantee enough drive to external JTAG loads. Up to

three Monaco boards can be chained together through JTAG.

Node D

‘C6x

TDO

TDI

JTAG IN or TBC

Node C

‘C6x

JTAG OUT

TDO

TDI

TDO

TDO

Node B

‘C6x

TDI

Node A

‘C6x

TDI

The Test Bus Controlle

r

(TBC) is disable

d

(bypassed) if an externa

l

debugger is connected t

o

the JTAG IN connector.

TDO

TDO

TDI

Routed back

to JTAG IN if

nothing is

connected to

JTAG OUT

Figure 11 JTAG Chain

Contents

Main Page Preface Page Table of Contents vi Page Page List of Figures Page List of Tables Page 1 Introduction 1.1. Features Page 1.3. Reference Documents Introduction 4 1.4. General Bus Architecture Figure 1 Block Diagram The following block diagram shows the main components of the Monaco board. 1.5. On-Board Power Supply 1.6. Reset Conditions 1.6.1. VME SYSRESET 1.6.2. VME A24 Slave Interface Reset 1.6.3. JTAG Reset Introduction 1.7. Board Layout Figure 2 Board Layout The following diagram shows the board layout of the Monaco board. 1.8. Jumper settings Page 2 Processor Nodes 10 Figure 3 Processor Node Block Diagram 2.1. Processor Memory Configuration 2.1.1. Internal Memory 2.1.2. External Memory 12 Table 4 'C6x Internal Peripheral Register Values Register 0x0180 001C 0x0180 0018 0x0180 0014 Figure 4 DSP Memory Map Part Number 500-00191 13 14 Figure 5 DSP Memory Map for External-Memory Space CE1 2.2. Synchronous Burst SRAM 2.3. Synchronous DRAM 2.4. Processor Expansion Module 2.5. Host Port 2.6. Interrupt Lines 2.7. Processor Booting Part Number 500-00191 17 2.8. Serial Port Routing Figure 6 Serial Port Routing Node D Node C Node B 18 Table 7 VME and PMC Connections for Serial Port 1 3 Global Shared Bus via SCV64 3.1. Memory 3.2. Arbitration 3.2.1. Single Cycle Bus Access 3.2.2. Burst Cycle Bus Access 3.2.3. Locked Cycles Page 4 VME64 Bus Interface 4.1. VME Operation 4.2. SCV64 Primary Slave A32/A24 Interface 4.3. A24 Secondary Slave Interface VME64 Bus Interface all addresses mapped to 00 2008h all addresses mapped to 00 5008h all addresses mapped to 00 4008h all addresses mapped to 00 3008h Page 4.4. Master A32/A24/A16 SCV64 Interface Page 5 DSP~LINK3 Interface 5.1. DSP~LINK3 Data Transfer Operating Modes 5.2. Address Strobe Control Mode 5.3. Interface Signals 5.4. DSP~LINK3 Reset Page 6 PCI Interface 6.1. Hurricane Configuration PCI Interface 34 Table 11 Hurricane Register Set PCI Interface Part Number 500-00191 35 6.2. Hurricane Implementation 7 JTAG Debugging Page 8 Interrupt Handling 8.1. Overview Interrupt Handling 40 Figure 12 Interrupt Routing 8.2. DSP~LINK3 Interrupts to Node A 8.3. PEM Interrupts 8.4. PCI Bus Interrupts 8.5. Hurricane Interrupt 8.6. SCV64 Interrupt Page 8.7. Bus Error Interrupts 8.8. Inter-processor Interrupts 8.9. VME Host Interrupts To Any Node 9 Registers VPAGE Register VSTATUS Register Page VINTA Register VINTB Register VINTC Register VINTD Register KIPL Enable Register DSP~LINK3 Register ID Register VME A24 Status Register VME A24 Control Register Page 10 Specifications 10.1. Board Identification 10.2. General Specifications Part Number 500-00191 61 10.3. Performance and Data Throughput Page Part Number 500-00191 63 11 Connector Pinouts Node D Figure 13 Connector Layout Node C Node B 11.1. VME Connectors Part Number 500-00191 65 Table 17 VME P2 Connector Pinout (PMC to VME P2) 66 Table 18 VME P2 Connector (DSP~LINK3 to VME P2) Part Number 500-00191 67 11.2. PMC Connectors 68 Table 20 PMC Connector JN2 Part Number 500-00191 69 Table 21 PMC Connector JN4 70 Table 22 Non-standard PMC Connector JN5 Part Number 500-00191 71 11.3. PEM Connectors 72 Table 24 PEM 2 Connector Pinout Part Number 500-00191 73 11.4. JTAG Connectors Both JTAG connectors use 2 x 7, 0.1 x 0.1 bare pin headers. Table 25 JTAG IN Connector Pinout Table 26 JTAG OUT Connector Page SCV64 Register Values Part Number 500-00191 75 Appendix A: SCV64 Register Values SCV64 Register Values 76 Table 27 SCV64 Register Initialization Index A B C D E F G H I K L M P R T V