z16f2811 ZiLOG Semiconductor, z16f2811 Datasheet - Page 332
z16f2811
Manufacturer Part Number
z16f2811
Description
High Performance Microcontrollers
Manufacturer
ZiLOG Semiconductor
Datasheet
1.Z16F2811.pdf
(383 pages)
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Table 174. OCD Status Register (OCDSTAT)
PS022006-0207
RESET
FIELD
BITS
R/W
OCD Status Register
DBGHALT
BRKHALT bit is set.
0 = The device is running.
1 = The device is in Debug Halt mode.
BRKHALT—Breakpoint halt
This bit determines what action the OCD takes when a Breakpoint occurs. If this bit is set
to one, then the DBGHALT bit is automatically set to one when a breakpoint occurs. If
BRKHALT is zero, then the CPU will loop on the breakpoint.
0 = CPU loops on current instruction when breakpoint occurs.
1 = A Breakpoint sets DBGHALT to one.
BRKEN—Enable breakpoints
This bit controls the behavior of the
default, these generate an illegal instruction system trap. If this bit is set to one, these
events generate a Breakpoint instead of a system trap. The resulting action depends upon
the BRKHALT bit.
0 =
1 =
DBGSTOP—Debug Stop mode
This bit controls the system clock behavior in STOP mode. When set to one, the system
clock will continue to operate in STOP mode.
0 = Stop mode debug disabled. system clock stops in STOP mode.
1 = Stop mode debug enabled. system clock runs in STOP mode.
Reserved
This bit is reserved and must be written to zero.
STEP—Single step an instruction
This bit is used to single step an instruction when in Debug Halt Mode. This bit is auto-
matically cleared after an instruction is executed.
0 = Idle
1 = Single Step an Instruction.
The
the system.
R
7
0
BRK
BRK
OCD Status Register (OCDSTAT)
instruction and hardware breakpoint generates system trap.
instruction and hardware breakpoint generates a breakpoint.
DBGBRK
R
6
0
HALT
R
5
0
P R E L I M I N A R Y
STOP
BRK
R
4
0
reports status information about the current state of
instruction and the hardware breakpoint. By
RPEN
R
3
0
Reserved
R
2
0
Product Specification
ZNEO
TDRF
On-Chip Debugger
R
1
0
™
Z16F Series
RDRE
R
0
1
318
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