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14
The RTD reads out data from the specified address before writing to the internal RAM and again
reads out from the same address immediately after writing to the internal RAM (this helps to verify
the data written to the internal RAM). The read data is output at the timing shown below.
RTDCLK
RTDRXD
RTDTXD
RTDACK
Note : (An) = Specified address
D (An) = Data at specified address (An)
Figure 14.3.5 Operation of the WRR Command
32 clock
32 clock
periods
periods
(A1) Write data
WRR (A1)
• • • • • •
3 clock
periods
14-8
REAL-TIME DEBUGGER (RTD)
14.3 Functional Description of the RTD
32 clock
periods
(A2) Write data
WRR (A2)
D (A1) Read value
before write
32 clock
periods
D (A1) Verify value
after write
Ver.0.10
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