mm912f634 Freescale Semiconductor, Inc, mm912f634 Datasheet - Page 166

• Manufacturer Part Number: mm912f634
• Description: Mm912f634 - Integrated S12 Based Relay Driver With Lin
• Manufacturer: Freescale Semiconductor, Inc

Table 219. PIM Reserved Register
Table 220. Port A Data Direction Register (DDRA)
Table 222. PIM Reserved Register
Note:
Note:
Note:
Table 221. DDRA Register Field Descriptions
Functional Description and Application Information
4.27.3.2
148.
4.27.3.3
149.
4.27.3.4
150.
Freescale Semiconductor
Address 0x0001
Address 0x0002
Address 0x0003
Reset
Reset
Reset
DDRA
W
W
W
R
R
Field
R
5-0
Read: Anytime.
Read: Anytime.
Read: Anytime.
Write: Unimplemented. Writing to this register has no effect.
Write: Anytime.
Write: Unimplemented. Writing to this register has no effect.
Port A Data Direction—
This register controls the data direction of pins 5 through 0.
The SPI function controls the data direction for the associated pins. In this case the data direction bits will not change.
When operating a pin as a general purpose I/O, the associated data direction bit determines whether it is an input or output.
1 Associated pin is configured as output.
0 Associated pin is configured as high-impedance input.
PIM Reserved Register
Port A Data Direction Register (DDRA)
PIM Reserved Register
7
0
0
7
0
0
7
0
0
6
0
0
6
0
0
6
0
0
DDRA5
0
0
0
0
0
5
5
5
DDRA4
0
0
0
0
0
4
4
4
Description
DDRA3
0
0
0
0
0
3
3
3
Port Integration Module (9S12I32PIMV1)
DDRA2
0
0
0
0
0
2
2
2
Access: User read/write
DDRA1
0
0
0
0
0
1
1
1
Access: User read
Access: User read
MM912F634
DDRA0
0
0
0
0
0
0
0
0
166
(148)
(149)
(150)