MC9S08GB60A Datasheet, PDF (94/302 Pages) Freescale Semiconductor, Inc – HCS08 Microcontrollers

Chapter 6 Parallel Input/Output
R
W
Reset
7
PTCPE7
0
6
PTCPE6
5
PTCPE5
4
PTCPE4
3
PTCPE3
2
PTCPE2
0
0
0
0
0
Figure 6-18. Pullup Enable for Port C (PTCPE)
1
PTCPE1
0
0
PTCPE0
0
Table 6-10. PTCPE Field Descriptions
Field
Description
7:0
PTCPE[7:0]
Pullup Enable for Port C Bits — For port C pins that are inputs, these read/write control bits determine whether
internal pullup devices are enabled. For port C pins that are configured as outputs, these bits are ignored and
the internal pullup devices are disabled.
0 Internal pullup device disabled.
1 Internal pullup device enabled.
R
W
Reset
7
PTCSE7
0
6
PTCSE6
5
PTCSE5
4
PTCSE4
3
PTCSE3
2
PTCSE2
1
PTCSE1
0
0
0
0
0
0
Figure 6-19. Slew Rate Control Enable for Port C (PTCSE)
0
PTCSE0
0
Table 6-11. PTCSE Field Descriptions
Field
Description
7:0
PTCSE[7:0]
Slew Rate Control Enable for Port C Bits — For port C pins that are outputs, these read/write control bits
determine whether the slew rate controlled outputs are enabled. For port B pins that are configured as inputs,
these bits are ignored.
0 Slew rate control disabled.
1 Slew rate control enabled.
R
W
Reset
7
PTCDD7
0
6
PTCDD6
5
PTCDD5
4
PTCDD4
3
PTCDD3
2
PTCDD2
0
0
0
0
0
Figure 6-20. Data Direction for Port C (PTCDD)
1
PTCDD1
0
0
PTCDD0
0
Table 6-12. PTCDD Field Descriptions
Field
Description
7:0
Data Direction for Port C Bits — These read/write bits control the direction of port C pins and what is read for
PTCDD[7:0] PTCD reads.
0 Input (output driver disabled) and reads return the pin value.
1 Output driver enabled for port C bit n and PTCD reads return the contents of PTCDn.
MC9S08GB60A Data Sheet, Rev. 2
94
Freescale Semiconductor