Manualshelf

Datasheet

ManualsBrandsNXP SEMICONDUCTORS ManualsMicrocontrollers, Microprocessors & QuartzesEmbedded microcontroller LQFP 64 (10x10) 8-Bit 20 MHz I/O number 57
181182183184185186187188189190
7.7.30 Port A Pullup Enable Register (PORT_PTAPE)
Address: 0h base + 30F0h offset = 30F0h
Bit 7 6 5 4 3 2 1 0
Read
PTAPE7 PTAPE6 PTAPE5
0
PTAPE3 PTAPE2 PTAPE1 PTAPE0
Write
Reset
0 0 0 0 0 0 0 0
PORT_PTAPE field descriptions
Field Description
7
PTAPE7
Pull Enable for Port A Bit 7
This control bit determines if the internal pullup device is enabled for the associated PTA pin. For port A
pins that are configured as outputs or Hi-Z, these bits have no effect.
0 Pullup disabled for port A bit 7.
1 Pullup enabled for port A bit 7.
6
PTAPE6
Pull Enable for Port A Bit 6
This control bit determines if the internal pullup device is enabled for the associated PTA pin. For port A
pins that are configured as outputs or Hi-Z, these bits have no effect.
0 Pullup disabled for port A bit 6.
1 Pullup enabled for port A bit 6.
5
PTAPE5
Pull Enable for Port A Bit 5
This control bit determines if the internal pullup device is enabled for the associated PTA pin. For port A
pins that are configured as outputs or Hi-Z, these bits have no effect.
0 Pullup disabled for port A bit 5.
1 Pullup enabled for port A bit 5.
4
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
3
PTAPE3
Pull Enable for Port A Bit 3
This control bit determines if the internal pullup device is enabled for the associated PTA pin. For port A
pins that are configured as outputs or Hi-Z, these bits have no effect.
NOTE: When configuring to use this pin as output high for IIC, the internal pullup device remains active
when PTAPE3 is set. It is automatically disabled to save power when output low.
0 Pullup disabled for port A bit 3.
1 Pullup enabled for port A bit 3.
2
PTAPE2
Pull Enable for Port A Bit 2
This control bit determines if the internal pullup device is enabled for the associated PTA pin. For port A
pins that are configured as outputs or Hi-Z, these bits have no effect.
NOTE: When configuring to use this pin as output high for IIC, the internal pullup device remains active
when PTAPE2 is set. It is automatically disabled to save power when output low.
Table continues on the next page...
Port data registers
MC9S08PA60 Reference Manual, Rev. 1, 9/2012
184 Freescale Semiconductor, Inc.