MC9S08JM16CGTE FREESCALE [Freescale Semiconductor, Inc], MC9S08JM16CGTE Datasheet - Page 93

• Manufacturer Part Number: MC9S08JM16CGTE
• Description: Microcontrollers
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

6.5.12
In addition to the I/O control, port F pins are controlled by the registers listed below.
Freescale Semiconductor
[6:4, 1:0]
[6:4, 1:0]
Reset
Reset
6:4, 1:0
PTFDD
6:4, 1:0
PTFPE
Field
Field
W
W
R
R
Port F Pin Control Registers (PTFPE, PTFSE, PTFDS)
Data Direction for Port F Bits — These read/write bits control the direction of port F pins and what is read for
PTFD reads.
0 Input (output driver disabled) and reads return the pin value.
1 Output driver enabled for port F bit n and PTFD reads return the contents of PTFDn.
Internal Pullup Enable for Port F Bits — Each of these control bits determines if the internal pullup device is
enabled for the associated PTF pin. For port F pins that are configured as outputs, these bits have no effect and
the internal pullup devices are disabled.
0 Internal pullup device disabled for port F bit n.
1 Internal pullup device enabled for port F bit n.
0
0
7
7
PTFDD6
PTFPE6
0
0
6
6
Figure 6-29. Internal Pullup Enable for Port F (PTFPE)
Table 6-27. PTFDD Register Field Descriptions
Table 6-28. PTFPE Register Field Descriptions
Figure 6-28. Data Direction for Port F (PTFDD)
PTFDD5
PTFPE5
MC9S08JM16 Series Data Sheet, Rev. 2
0
0
5
5
PTFDD4
PTFPE4
0
0
4
4
Description
Description
3
0
3
0
0
0
2
2
Chapter 6 Parallel Input/Output
PTFDD1
PTFPE1
0
0
1
1
PTFDD0
PTFPE0
0
0
0
0
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