MOTOROLA
Chapter 34. Parallel I/O Ports
34-15
Part V. The Communications Processor Module
34.4.1.1 Port C Data Register (PCDAT)
When read, the port C data (PCDAT) register always reßects the current status of each line.
Table 34-12 describes PCDAT bits.
34.4.1.2 Port C Data Direction Register (PCDIR)
Port C data direction register (PCDIR) bits conÞgure port C signals as general-purpose
inputs or outputs. If a signal is not programmed for general-purpose I/O, PCDIR, along
with PCSO, selects the peripheral function to be performed.
Table 34-13 describes PCDIR bits.
34.4.1.3 Port C Pin Assignment Register (PCPAR)
The port C pin assignment register (PCPAR) conÞgures signals as general-purpose I/O or
dedicated for use with a peripheral.
Bit
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Field
Ñ
D4ÐD15
Reset
0
R/W
R/W
Addr
0x966
Figure 34-11. Port C Data Register (PCDAT)
Table 34-12. PCDAT Bit Descriptions
Bits
Name
Description
0Ð3
Ñ
Reserved
4Ð15
D
n
Contains the data on the corresponding signal.
Bit
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Field
Ñ
DR4ÐDR15
Reset
0000_0000_0000_0000
R/W
R/W
Addr
0x960
Figure 34-12. Port C Data Direction Register (PCDIR)
Table 34-13. PCDIR Bit Descriptions
Bits
Name
Description
0Ð3
Ñ
Reserved
4Ð15
DR
n
Port C data direction. ConÞgures port C signals as inputs or outputs when functioning as
general-purpose I/O; otherwise, used with PCSO to select the peripheral function.
0 Select the signal for general-purpose input, or select peripheral function 0.
1 Select the signal for general-purpose output, or select peripheral function 1.
Summary of Contents for MPC860 PowerQUICC
Page 3: ...MPC860UM AD 07 98 REV 1 MPC860 PowerQUICC ª UserÕs Manual ...
Page 36: ...xxxvi MPC860 PowerQUICC UserÕs Manual MOTOROLA CONTENTS Paragraph Number Title Page Number ...
Page 78: ...I iv MPC860 PowerQUICC UserÕs Manual MOTOROLA Part I Overview ...
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Page 226: ...8 32 MPC860 PowerQUICC UserÕs Manual MOTOROLA Part II PowerPC Microprocessor Module ...
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Page 274: ...III iv MPC860 PowerQUICC UserÕs Manual MOTOROLA Part III Configuration ...
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Page 325: ...MOTOROLA Part IV Hardware Interface IV v Part IV Hardware Interface ...
Page 326: ...IV vi MPC860 PowerQUICC UserÕs Manual MOTOROLA Part IV Hardware Interface ...
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Page 632: ...21 44 MPC860 PowerQUICC UserÕs Manual MOTOROLA Part V The Communications Processor Module ...
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Page 998: ...37 48 MPC860 PowerQUICC UserÕs Manual MOTOROLA Part VI Debug and Test ...
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