SC9S12XS256J1MAA FREESCALE [Freescale Semiconductor, Inc], SC9S12XS256J1MAA Datasheet - Page 118

• Manufacturer Part Number: SC9S12XS256J1MAA
• Description: HCS12 Microcontrollers
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

1
1
Port Integration Module (S12XSPIMV1)
2.3.73
2.3.74
2.4
2.4.1
Each pin except PE0, PE1, and BKGD can act as general purpose I/O. In addition each pin can act as an
output or input of a peripheral module.
118
PER1AD0
Address 0x0277
Address 0x0278-0x27F
Read: Anytime.
Write: Anytime.
Read: Always reads 0x00
Write: Unimplemented
Field
Reset
Reset
7-0
W
W
R
R
PER1AD07
Functional Description
Port AD0 pull device enable—Enable pull-up device on input pin
This bit controls whether a pull device on the associated port input pin is active. If a pin is used as output this bit has
no effect. The polarity is selected by the related polarity select register bit.
1 Pull device enabled
0 Pull device disabled
Port AD0 Pull Up Enable Register 1 (PER1AD0)
PIM Reserved Registers
General
0
0
0
7
7
= Unimplemented or Reserved
PER1AD06
Figure 2-71. Port AD0 Pull Up Enable Register 1 (PER1AD0)
0
0
0
6
6
Table 2-70. PER1AD0 Register Field Descriptions
PER1AD05
S12XS Family Reference Manual, Rev. 1.09
Figure 2-72. PIM Reserved Registers
0
0
0
5
5
PER1AD04
0
0
0
4
4
Description
u = Unaffected by reset
PER1AD03
3
0
3
0
0
PER1AD02
0
0
0
2
2
PER1AD01
Freescale Semiconductor
Access: User read/write
0
0
0
1
1
Access: User read
PER1AD00
0
0
0
0
0
1
1