mc9s12ne64 Freescale Semiconductor, Inc, mc9s12ne64 Datasheet - Page 131

• Manufacturer Part Number: mc9s12ne64
• Description: Hcs12 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

3.3.2.6
3.3.2.6.1
Read:Anytime.
Write:Anytime.
If the data direction bits of the associated I/O pins are set to 1, a read returns the value of the port register,
otherwise the value at the pins is read.
The EPHY LED drive takes precedence over general-purpose I/O function if the EPHYCTL0 LEDEN bit
is enabled. With the LEDEN bit set, PTL[4:0] become COLLED, DUPLED, SPDLED, LNKLED, and
ACTLED. Refer to EPHY block description chapter for more detail.
3.3.2.6.2
Read:Anytime.
Write:Never, writes to this register have no effect.
This register always reads back the status of the associated pins. This also can be used to detect overload
or short circuit conditions on output pins.
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Reset:
Reset:
Read:
Read:
Write:
Write:
PHY
Port L Registers
I/O Register (PTL)
Input Register (PTIL)
Bit 7
Bit 7
—
—
0
0
= Reserved or unimplemented
= Reserved or unimplemented
PTIL6
PTL6
—
6
0
6
Figure 3-40. Port L Input Register (PTIL)
Figure 3-39. Port L I/O Register (PTL)
MC9S12NE64 Data Sheet, Rev. 1.1
PTIL5
PTL5
—
5
0
5
COLLED
PTIL4
PTL4
—
4
0
4
DUPLED
PTIL3
PTL3
—
3
0
3
SPDLED
PTIL2
PTL2
—
2
0
2
Memory Map and Register Descriptions
LNKLED
PTIL1
PTL1
—
1
0
1
ACTLED
PTIL0
PTL0
Bit 0
Bit 0
—
0
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