mc68hc908ld64 Freescale Semiconductor, Inc, mc68hc908ld64 Datasheet - Page 311

• Manufacturer Part Number: mc68hc908ld64
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

19.7 Port E
19.7.1 Port E Data Register
MC68HC908LD64
Freescale Semiconductor
Alternative Function: DMINUS4 DPLUS4 DMINUS3 DPLUS3 DMINUS2 DPLUS2 DMINUS1 DPLUS1
—
Rev. 3.0
Address:
Port E is an 8-bit special-function port that shares all of its pins with the
universal serial bus module. (See
Module
The port E data register (PTE) contains a data latch for each of the eight
port E pins.
PTE[7:0] — Port E Data Bits
DPLUSx and DMINUSx — Downstream Pairs of USB HUB Data Pins
Reset:
Read:
Write:
These read/write bits are software-programmable. Data direction of
each port E pin is under the control of the corresponding bit in data
direction register E. Reset has no effect on port E data.
The DPLUSx and DMINUSx pins are the data pin pairs of the
universal serial bus HUB. When the USBDSxE bit in the port E control
register (PECR) is clear, the corresponding PTE/DPLUSx and
PTE/DMINUSx pins are available for general-purpose I/O. (See
19.7.3 Port E
$0008
PTE7
(USB).)
Bit 7
Figure 19-17. Port E Data Register (PTE)
Input/Output (I/O) Ports
PTE6
Options.).
6
PTE5
5
Unaffected by reset
PTE4
Section 14. Universal Serial Bus
4
PTE3
3
PTE2
2
Input/Output (I/O) Ports
PTE1
1
Data Sheet
PTE0
Bit 0
Port E
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