S9S08AW16A FREESCALE [Freescale Semiconductor, Inc], S9S08AW16A Datasheet - Page 100

• Manufacturer Part Number: S9S08AW16A
• Description: HCS08 Microcontrollers
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Chapter 6 Parallel Input/Output
6.7.10
In addition to the I/O control, port E pins are controlled by the registers listed below.
100
PTEDD[7:0]
PTEPE[7:0]
Reset
Reset
Field
Field
7:0
7:0
W
W
R
R
PTEDD7
PTEPE7
Port E Pin Control Registers (PTEPE, PTESE, PTEDS)
Data Direction for Port E Bits — These read/write bits control the direction of port E pins and what is read for
PTED reads.
0 Input (output driver disabled) and reads return the pin value.
1 Output driver enabled for port E bit n and PTED reads return the contents of PTEDn.
Internal Pullup Enable for Port E Bits— Each of these control bits determines if the internal pullup device is
enabled for the associated PTE pin. For port E 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 E bit n.
1 Internal pullup device enabled for port E bit n.
0
0
7
7
PTEDD6
PTEPE6
0
0
6
6
Figure 6-32. Internal Pullup Enable for Port E (PTEPE)
Table 6-22. PTEDD Register Field Descriptions
Table 6-23. PTEPE Register Field Descriptions
Figure 6-31. Data Direction for Port E (PTEDD)
PTEDD5
PTEPE5
MC9S08AC16 Series Data Sheet, Rev. 8
0
0
5
5
PTEDD4
PTEPE4
0
0
4
4
Description
Description
PTEDD3
PTEPE3
3
0
3
0
PTEDD2
PTEPE2
0
0
2
2
PTEDD1
PTEPE1
Freescale Semiconductor
0
0
1
1
PTEDD0
PTEPE0
0
0
0
0