Datasheet

Port Integration Module (S12XSPIMV1)
S12XS Family Reference Manual, Rev. 1.13
110 Freescale Semiconductor
2.3.53 Port H Reduced Drive Register (RDRH)
2.3.54 Port H Pull Device Enable Register (PERH)
Address 0x0263 Access: User read/write
1
1
Read: Anytime
Write: Anytime
76543210
R
RDRH7 RDRH6 RDRH5 RDRH4 RDRH3 RDRH2 RDRH1 RDRH0
W
Reset 00000000
Figure 2-51. Port H Reduced Drive Register (RDRH)
Table 2-50. RDRH Register Field Descriptions
Field Description
7-0
RDRH
Port H reduced drive—Select reduced drive for output pin
This bit configures the drive strength of the associated output pin as either full or reduced. If a pin is used as input
this bit has no effect. The reduced drive function is independent of which function is being used on a particular pin.
1 Reduced drive selected (approx. 1/5 of the full drive strength)
0 Full drive strength enabled
Address 0x0264 Access: User read/write
1
1
Read: Anytime
Write: Anytime
76543210
R
PERH7 PERH6 PERH5 PERH4 PERH3 PERH2 PERH1 PERH0
W
Reset 00000000
Figure 2-52. Port H Pull Device Enable Register (PERH)
Table 2-51. PERH Register Field Descriptions
Field Description
7-0
PERH
Port H pull device enable—Enable pull 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