10.3. TrackingICE outputs

Table 10.1 shows the ARM922T outputs that are re-used when the ARM922T processor is in TrackingICE mode.

Table 10.1. ARM922T in TrackingICE mode 

ARM922T

output

Attach to tracking ARM9TDMI

input

IR[3:2]CHSE[1:0]
IR[1:0]CHSD[1:0]
SCREG[4]nIRQ
SCREG[3]nFIQ
SCREG[2]DABORT
SCREG[1]IABORT
TAPSM[3]EXTERN1
TAPSM[2]EXTERN0
TAPSM[1]DEWPT
TAPSM[0]IEBKPT
ICAPCLKBSHIVECS
ECAPCLKBSEDBGGQ
PCLKBSnWAIT
RSTCLKBSnRESET
SHCLK1BSTDI
SHCLK2BSTMS
TCK1GCLK
TCK2TCK
SDINSDOUTBS

The remaining input connections to the ARM9TDMI core are:

These can still be attached to a coprocessor when the ARM922T is in tracking mode. The only difference in behavior is that CPDOUT mirrors the ARM922T DD bus on every cycle, not only for coprocessor data transfers. The following conditions apply:

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