S912XHY128F0VLM Datasheet, PDF (118/802 Pages) Freescale Semiconductor, Inc – S12 Microcontrollers

Port Integration Module (S12XHYPIMV1)
2.3.48 Port H Input Register (PTIH)
Address 0x0261
7
R PTIH7
6
PTIH6
5
PTIH5
4
PTIH4
3
PTIH3
2
PTIH2
W
Reset
u
u
u
u
u
u
= Unimplemented or Reserved
u = Unaffected by reset
Figure 2-45. Port H Input Register (PTIH)
1 _{Read: Anytime.}
Write:Never, writes to this register have no effect.
Access: User read¹
1
PTIH1
0
PTIH0
u
u
Field
7-0
PTIH
Table 2-40. PTIH Register Field Descriptions
Description
Port H input data—
This register always reads back the buffered state of the associated pins. This can also be used to detect overload
or short circuit conditions on output pins.
2.3.49 Port H Data Direction Register (DDRH)
Address 0x0262
R
W
Reset
7
DDRH7
0
1 _{Read: Anytime.}
Write: Anytime.
6
DDRH6
5
DDRH5
4
DDRH4
3
DDRH3
2
DDRH2
0
0
0
0
0
Figure 2-46. Port H Data Direction Register (DDRH)
Access: User read/write¹
1
0
DDRH1
DDRH0
0
0
MC9S12XHY-Family Reference Manual, Rev. 1.01
118
Freescale Semiconductor