32186 datasheet(796/1032 Pages) RENESAS

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REAL TIME DEBUGGER (RTD)

15-10

32185/32186 Group Hardware Manual

Rev.1.10 REJ09B0235-0110 May 15, 07

15.4.8 Resetting RTD

The RTD is reset by applying a system reset (i.e., RESET# signal input). The status of the RTD related

output pins upon exiting system reset are shown below.

Table 15.4.2 RTD Pin Status Upon Exiting System Reset

Pin Name

Status

RTDACK

“H” level output

RTDTXD

“H” level output

The first command transfer to the RTD after being reset is initiated by transferring data to the RTDRXD pin

synchronously with the falling edge of RTDCLK.

32 clock

periods

Don't Care

RDR(A1)

RTDCLK

RTDRXD

RTDTXD

RTDACK

RESET#

System

reset

"H"

RDR(A2)

FFFF FFFF

D(A2)

Notes: • (An) = Specified address

• D(An) = Data at specified address (An)

"H"

D(A1)

32 clock

periods

32 clock

periods

32 clock

periods

Figure 15.4.13 Command Transfer to the RTD after System Reset

15.4 Functional Description of RTD

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