Motorola MPC860 PowerQUICC User Manual page 33

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Number
37.3.1.2 Entering Debug Mode ..............................................................................37-23
37.3.1.3 Debug Mode Indication ...........................................................................37-24
37.3.1.4 Checkstop State and Debug Mode ...........................................................37-24
37.3.1.5 Saving Machine State when Entering Debug Mode ................................37-25
37.3.1.6 Running in Debug Mode..........................................................................37-25
37.3.1.7 Exiting Debug Mode ................................................................................37-25
37.3.2 Development Port Communication..............................................................37-25
37.3.2.1 Development Port Pins.............................................................................37-26
37.3.2.1.1
37.3.2.1.2
37.3.2.1.3
37.3.2.1.4
37.3.2.2 Development Port Registers.....................................................................37-27
37.3.2.2.1
37.3.2.2.2
37.3.2.2.3
37.3.2.3 Development Port Serial CommunicationsÐClock Mode ........................37-28
37.3.2.3.1
37.3.2.3.2
37.3.2.3.3
37.3.2.4 Development Port Serial CommunicationsÐTrap Enable Mode..............37-30
37.3.2.4.1
37.3.2.4.2
37.3.2.5 Development Port Serial CommunicationsÐDebug Mode.......................37-32
37.3.2.5.1
37.3.2.5.2
37.3.2.5.3
37.4 Software Monitor Debugger Support...............................................................37-35
37.4.1 Freeze Indication..........................................................................................37-35
37.5 Development Support Programming Model ....................................................37-36
37.5.1 Development Support Registers...................................................................37-37
37.5.1.1 Comparator AÐH Value Registers (CMPAÐCMPH) ...............................37-37
37.5.1.2 Breakpoint Address Register (BAR)........................................................37-38
37.5.1.3 Instruction Support Control Register (ICTRL) ........................................37-39
37.5.1.4 Load/Store Support Comparators Control Register (LCTRL1)...............37-40
37.5.1.5 Load/Store Support AND-OR Control Register (LCTRL2)....................37-41
37.5.1.6 Breakpoint Counter Value and Control Registers
37.5.2 Debug Mode Registers.................................................................................37-44
37.5.2.1 Interrupt Cause Register (ICR) ................................................................37-44
37.5.2.2 Debug Enable Register (DER) .................................................................37-46
37.5.2.3 Development Port Data Register (DPDR) ...............................................37-47
MOTOROLA
CONTENTS
Development Serial Clock (DSCK).....................................................37-26
Development Serial Data In (DSDI)....................................................37-26
Development Serial Data Out (DSDO)................................................37-26
Freeze ...................................................................................................37-26
Development Port Shift Register .........................................................37-27
Trap Enable Control Register (TECR).................................................37-27
Development Port Registers Decode ...................................................37-28
Asynchronous Clocked ModeÑUsing DSCK.....................................37-28
Synchronous Self-Clocked ModeÑUsing CLKOUT..........................37-29
Selection of Development Port Clock Mode .......................................37-29
Serial Data Into Development Port ......................................................37-30
Serial Data Out of Development Port ..................................................37-31
Serial Data Into Development Port ......................................................37-32
Serial Data Out of Development Port ..................................................37-33
Fast Download Procedure ....................................................................37-34
(COUNTA/COUNTB).........................................................................37-43
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Contents
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