Port E Data Register (Pdre) - Motorola DSP56367 User Manual

Enhanced Serial Audio Interface 1 (ESAI_1)
GPIO - Pins and Registers
11.5.3

PORT E DATA REGISTER (PDRE)

The read/write 24-bit Port E Data Register (see Figure 11-17) is used to read or write data
to/from ESAI_1 GPIO pins. Bits PD(11:0) are used to read or write data from/to the
corresponding port pins if they are configured as GPIO. If a port pin [i] is configured as a
GPIO input, then the corresponding PD[i] bit will reflect the value present on this pin. If a port
pin [i] is configured as a GPIO output, then the value written into the corresponding PD[i] bit
will be reflected on this pin. If a port pin [i] is configured as disconnected, the corresponding
PD[i] bit is not reset and contains undefined data.
11
Y:$FFFF9D PD11
23
11-18
10 9 8 7
PD10 PD9 PD8 PD7
22 21 20 19
Reserved bit - read as zero; should be written with zero for future compatibility.
Figure 11-17 PDRE Register
DSP56367
6 5 4 3
PD6 PD4 PD3
18 17 16 15
2 1 0
PD1 PD0
14 13 12
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