Development Capabilities and Interface
MOTOROLA MPC823e REFERENCE MANUAL 20-53
DEVELOPMENT
20
CAPABILITIES & INTERFACE
20.6.2.8 BREAKPOINT COUNTER A VALUE AND CONTROL REGISTER. The
breakpoint counter A value and control (COUNTA) register is used to count watchpoint
events and to generate breakpoints a programmable amount of time after a watchpoint
occurs.
CNTV—Counter Preset Value
This field contains the number of watchpoint events to be encountered before a breakpoint
is generated.
Bits 16–29—Reserved
These bits are reserved and must be set to 0.
CNTC—Counter Source Select
00 = Not active (reset value).
01 = Instruction first watchpoint.
10 = Load/store first watchpoint.
11 = Reserved.
COUNTA
BIT 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
FIELD CNTV
RESET —
R/W R/W
SPR 150
BIT 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
FIELD RESERVED CNTC
RESET 00
R/W R/W R/W
SPR 150
NOTE: — = Undefined.
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