MC9S12G FREESCALE [Freescale Semiconductor, Inc], MC9S12G Datasheet - Page 185

• Manufacturer Part Number: MC9S12G
• Description: Ignores external trigger. Performs one conversion sequence and stops.
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

1
2.4.3.30
Freescale Semiconductor
Address 0x0254 (G1, G2)
Address 0x0254 (G3)
Read: Anytime
Write: Anytime
DDRM
PERM
PERM
Field
Field
Reset
Reset
3-0
3-1
0
This document is valid for the S12G96 and the S12G128 device. All information related to other devices is preliminary.
W
W
R
R
Port M data direction—
This bit determines whether the associated pin is a general-purpose input or output.
1 Associated pin configured as output
0 Associated pin configured as input
Port M pull device enable—Enable pull device on input pin or wired-or output pin
This bit controls whether a pull device on the associated port input pin is active. The polarity is selected by the related
polarity select register bit. If a pin is used as output this bit has only effect if used in wired-or mode with a pullup
device.
1 Pull device enabled
0 Pull device disabled
Port M pull device enable—Enable pull device on input pin or wired-or output pin
This bit controls whether a pull device on the associated port input pin is active. The polarity is selected by the related
polarity select register bit. If a pin is used as output this bit has only effect if used in wired-or mode with a pullup
device.
If CAN is active the selection of a pulldown device on the RXCAN input will have no effect.
1 Pull device enabled
0 Pull device disabled
Port M Pull Device Enable Register (PERM)
0
0
0
0
7
7
Figure 2-31. Port M Pull Device Enable Register (PERM)
0
0
0
0
6
6
Table 2-54. DDRM Register Field Descriptions
Table 2-55. PERM Register Field Descriptions
MC9S12G Family Reference Manual, Rev.1.01
0
0
0
0
5
5
0
0
0
0
4
4
Description
Description
PERM3
0
0
0
3
3
PERM2
2
0
2
0
0
Port Integration Module (S12GPIMV0)
PERM1
PERM1
Access: User read/write
Access: User read/write
0
0
1
1
PERM0
PERM0
0
0
0
0
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1