参数资料
型号: CORE8051-AR
厂商: Microsemi SoC
文件页数: 37/41页
文件大小: 0K
描述: IP MODULE CORE8051
标准包装: 1
系列: *
Core8051
clkcpu
clkper
clk
idle
stop
interrupt
request
Core8051
clkcpu_en
clkper_en
Figure 21 ? Core8051 Unified Clock Domain Connection Diagram
clkcpu
clkper
clk
idle
stop
interrupt
request
Core8051
clkcpu_en
clkper_en
Figure 22 ? Core8051 Power Management Connection Diagram
Interface for On-Chip Instrumentation (Optional)
The optional OCI unit serves as the interface for on-chip
instrumentation. The OCI communicates with external
debugger hardware and software as a debugging aid to
the user.
The following signals are not directly visible at the I/O
pins of Core8051, they are connected internally between
the OCI block and the main logic of Core8051:
RTL licensees of Core8051 have access to these internal
signals. The JTAG interface pins: TCK, TMS, TDI, TDO, and
nTRT are used in conjunction with external debugger
hardware and software to control and monitor the
above-mentioned OCI signals.
The Run/Stop Control
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debugreq
debugack
debugstep
debugprog
fetch
flush
instr
acc
v6.0
The debugger controls the CPU with the debugreq
signal. The debugreq signal stops the CPU at the next
instruction and holds it in an idle state. When in an idle
state, the CPU executes the NOP instruction and returns
the debugack signal. The debugreq signal is
synchronized to the microcontroller instruction cycle and
phase, as shown in Figure 23 on page 38 . Figure 23
demonstrates the behavior of the debugreq and
debugack signals. The LCALL and the LJMP are sample
instructions of a user program.
37
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