3 port c data register (pdrc), Port c data register (pdrc) -48, Figure 8-19 – Freescale Semiconductor DSP56366 User Manual
Page 198: Pcrc register -48, Figure 8-20, Prrc register -48, Table 8-12, Pcrc and prrc bits functionality -48, Rresponding port pin. see, Describes the port pin
GPIO - Pins and Registers
DSP56366 24-Bit Digital Signal Processor User Manual, Rev. 4
8-48
Freescale Semiconductor
8.5.3
Port C Data register (PDRC)
The read/write 24-bit Port C Data Register (see
) is used to read or write data to/from ESAI
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
reflects 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 is 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.
Table 8-12 PCRC and PRRC Bits Functionality
PDC[i]
PC[i]
Port Pin[i] Function
0
0
disconnected
0
1
GPIO input
1
0
GPIO output
1
1
ESAI
11
10
9
8
7
6
5
4
3
2
1
0
X:$FFFFBF
PC11
PC10
PC9
PC8
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
23
22
21
20
19
18
17
16
15
14
13
12
Reserved bit - read as zero; should be written with zero for future compatibility.
Figure 8-19 PCRC Register
11
10
9
8
7
6
5
4
3
2
1
0
X:$FFFFBE
PDC11 PDC10
PDC9
PDC8
PDC7
PDC6
PDC5
PDC4
PDC3
PDC2
PDC1
PDC0
23
22
21
20
19
18
17
16
15
14
13
12
Reserved bit - read as zero; should be written with zero for future compatibility.
Figure 8-20 PRRC Register