Chapter 4 Port Integration Module (S12XDP512PIMV2)
MC9S12XDP512 Data Sheet, Rev. 2.11
Freescale Semiconductor 259
4.3.2.72 Port AD1 Pull Up Enable Register 0 (PER0AD1)
Read: Anytime.
Write: Anytime.
This register activates a pull-up device on the respective PAD[23:16] pin if the port is used as input. This
bit has no effect if the port is used as output. Out of reset no pull-up device is enabled.
4.3.2.73 Port AD1 Pull Up Enable Register 1 (PER1AD1)
Read: Anytime.
Write: Anytime.
This register activates a pull-up device on the respective PAD[15:08] pin if the port is used as input. This
bit has no effect if the port is used as output. Out of reset no pull-up device is enabled.
0x027E
76543210
R
PER0AD123 PER0AD122 PER0AD121 PER0AD120 PER0AD119 PER0AD118 PER0AD117 PER0AD116
W
Reset 00000000
Figure 4-74. Port AD1 Pull Up Enable Register 0 (PER0AD1)
Table 4-65. PER0AD1 Field Descriptions
Field Description
7–0
PER0AD1[23:16]
Pull Device Enable Port AD1 Register 0
0 Pull-up device is disabled.
1 Pull-up device is enabled.
0x027F
76543210
R
PER1AD115 PER1AD114 PER1AD113 PER1AD112 PER1AD111 PER1AD110 PER1AD19 PER1AD18
W
Reset 00000000
Figure 4-75. Port AD1 Pull Up Enable Register 1 (PER1AD1)
Table 4-66. PER1AD1 Field Descriptions
Field Description
7–0
PER1AD1[15:8]
Pull Device Enable Port AD1 Register 1
0 Pull-up device is disabled.
1 Pull-up device is enabled.