Chapter 4 Port Integration Module (S12XDP512PIMV2)
MC9S12XDP512 Data Sheet, Rev. 2.11
258 Freescale Semiconductor
4.3.2.70 Port AD1 Reduced Drive Register 0 (RDR0AD1)
Read: Anytime.
Write: Anytime.
This register configures the drive strength of each PAD[23:16] output pin as either full or reduced. If the
port is used as input this bit is ignored.
4.3.2.71 Port AD1 Reduced Drive Register 1 (RDR1AD1)
Read: Anytime.
Write: Anytime.
This register configures the drive strength of each PAD[15:08] output pin as either full or reduced. If the
port is used as input this bit is ignored.
0x027C
76543210
R
RDR0AD123 RDR0AD122 RDR0AD121 RDR0AD120 RDR0AD119 RDR0AD118 RDR0AD117 RDR0AD116
W
Reset 00000000
Figure 4-72. Port AD1 Reduced Drive Register 0 (RDR0AD1)
Table 4-63. RDR0AD1 Field Descriptions
Field Description
7–0
RDR0AD1[23:16]
Reduced Drive Port AD1 Register 0
0 Full drive strength at output.
1 Associated pin drives at about 1/6 of the full drive strength.
0x027D
76543210
R
RDR1AD115 RDR1AD114 RDR1AD113 RDR1AD112 RDR1AD111 RDR1AD110 RDR1AD19 RDR1AD18
W
Reset 00000000
Figure 4-73. Port AD1 Reduced Drive Register 1 (RDR1AD1)
Table 4-64. RDR1AD1 Field Descriptions
Field Description
7–0
RDR1AD1[15:8]
Reduced Drive Port AD1 Register 1
0 Full drive strength at output.
1 Associated pin drives at about 1/6 of the full drive strength.