ColdFire V1 Full Chip Simulation Connection
FCS Visualization Utilities
609
Microcontrollers Debugger Manual
Figure 28.32 The DDRAM Controller
The Address Counter (
AC
) is an internal register of the display controller which points at
the current address. In the default configuration
AC
is initialized at 00h and increases
when an ASCII character is stored at the address to which
AC
points. When
AC
is equal to
1Fh, the next increased value is not 20h, but 40h.
For example, if we send a 48-character string after initialization, the AC stores the bytes at
addresses 00h to 1Fh and 40h to 4Fh.
NOTE
Only characters having their ASCII codes in the visible interval of the 16
characters (positions 1 to 16) of RAM appear.
Sending Information to the Display
Two steps are necessary to display a character:
1. Set the E and RS bits at 1 and the R/W bit at 0 (control word 00000100b)
2. Write the character ASCII code on the data port. Set bit E to 0 (this validates bits d7-
d0).
For an instruction, only step 2 is different: the Byte to write on the data port is the
instruction code you want the display controller to execute.
Summary of Contents for Microcontrollers
Page 1: ...Microcontrollers Debugger Manual Revised 22 October 2007 ...
Page 20: ...Table of Contents 20 Microcontrollers Debugger Manual ...
Page 24: ...Book I Contents 24 Microcontrollers Debugger Manual ...
Page 60: ...Debugger Interface Highlights of the User Interface 60 Microcontrollers Debugger Manual ...
Page 156: ...Debugger Components Visualization Utilities 156 Microcontrollers Debugger Manual ...
Page 198: ...Real Time Kernel Awareness OSEK Kernel Awareness 198 Microcontrollers Debugger Manual ...
Page 236: ...Synchronized Debugging Through DA C IDE Troubleshooting 236 Microcontrollers Debugger Manual ...
Page 238: ...Book II Contents 238 Microcontrollers Debugger Manual ...
Page 332: ...HC08 Full Chip Simulation Configuration Procedure 332 Microcontrollers Debugger Manual ...
Page 348: ...MON08 Interface Connection Device Class Description 348 Microcontrollers Debugger Manual ...
Page 364: ...ICS MON08 Interface Connection Device Class Description 364 Microcontrollers Debugger Manual ...
Page 428: ...HC08 FSICEBASE Emulator Bus State Analyzer BSA 428 Microcontrollers Debugger Manual ...
Page 430: ...Book III Contents 430 Microcontrollers Debugger Manual ...
Page 466: ...HCS08 Full Chip Simulation Peripheral Modules Commands 466 Microcontrollers Debugger Manual ...
Page 544: ...HCS08 On Chip DBG Module HCS08 DBG V3 New Features 544 Microcontrollers Debugger Manual ...
Page 546: ...Book IV Contents 546 Microcontrollers Debugger Manual ...
Page 576: ...Book V Contents 576 Microcontrollers Debugger Manual ...
Page 698: ...Book VI Contents 698 Microcontrollers Debugger Manual ...
Page 714: ...Flash Programming NVMC Commands 714 Microcontrollers Debugger Manual ...
Page 730: ...Book VII Contents 730 Microcontrollers Debugger Manual ...
Page 840: ...Book VIII Contents 840 Microcontrollers Debugger Manual ...
Page 864: ...Book IX Contents 864 Microcontrollers Debugger Manual ...
Page 868: ...Legacy Target Interfaces Removed 868 Microcontrollers Debugger Manual ...