MC68HC705KJ1CS FREESCALE [Freescale Semiconductor, Inc], MC68HC705KJ1CS Datasheet - Page 10

• Manufacturer Part Number: MC68HC705KJ1CS
• Description: Migrating from the MC68HC705K1 to the MC68HC705KJ1
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Application Note
PB5, PB4, PB1, and PB0 should be configured as inputs at all times. These bits are avail-
PB5, PB4, PB1, and PB0 should be configured as inputs at all times. These bits are avail-
PB5, PB4, PB1, and PB0 should be configured as inputs at all times. These bits are avail-
Reset:
Reset:
Reset:
Freescale Semiconductor, Inc.
$0001
$0005
$0011
Read:
Read:
Read:
Write:
Write:
Write:
able for read/write but are not available externally. Configuring them as inputs will en-
sure that the pulldown devices are enabled, thus properly terminating them.
able for read/write but are not available externally. Configuring them as inputs will en-
sure that the pulldown devices are enabled, thus properly terminating them.
able for read/write but are not available externally. Configuring them as inputs will en-
sure that the pulldown devices are enabled, thus properly terminating them.
For More Information On This Product,
Figure 8. Port B Data Direction Register (DDRB)
Bit 7
Bit 7
Bit 7
0
0
0
0
0
Go to: www.freescale.com
Figure 7. Port B Data Register (PORTB)
Figure 9. Pulldown Register B (PDRB)
= Unimplemented
= Unimplemented
= Unimplemented
6
0
6
0
0
6
0
0
Note
Note
Note
See
See
See
5
5
0
5
0
Unaffected by reset
Note
Note
Note
See
See
See
4
4
0
4
0
DDRB3
PDIB3
PB3
3
3
0
3
0
DDRB2
PDIB2
PB2
2
2
0
2
0
Note
Note
Note
See
See
See
1
1
0
1
0
AN1746
Note
Note
Note
Bit 0
Bit 0
Bit 0
See
See
See
0
0