Table 6-5 Hdr And Hddr Functionality - Motorola DSP56309 User Manual

Host Interface (HI08)
HI08 DSP Side ProgrammerÕs Model
HDDR
DRxx
Configured as GPIO signal
0 Read only bitÑ The value read is the
binary value of the signal. The
corresponding signal is configured as
an input.
1 Read/write bitÑ The value written is
the value read. The corresponding
signal is configured as an output, and
is driven with the data written to Dxx.
6.5.9 DSP Side Registers After Reset
Table 6-6 shows the results of the four reset types on the bits in each of the HI08 registers
accessible by the DSP56309. Reset types are as follows:
¥ Hardware reset (HW)
¥ Software reset (SW)
¥ Individual reset (IR)
¥ Stop reset (ST)
6-18

Table 6-5 HDR and HDDR Functionality

caused by the RESET signal
Ñ
caused by executing the RESET instruction
Ñ
caused by clearing the HPCR:HEN
Ñ
caused by executing the STOP instruction.
Ñ
DSP56309UM/D
HDR
Dxx
Configured as non-GPIO signal
Read only bitÑDoes not contain
significant data.
Read/write bitÑ The value written is
the value read.
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