MC68HC08JB1 Datasheet, PDF (30/216 Pages) Motorola, Inc – Microcontrollers

1.5.8 Port D I/O Pins (PTD0/1)
PTD0/1 is a general-purpose bidirectional I/O port pin; open-drain when
configured as an output. (See Section 11. Input/Output Ports (I/O).)
This pin is software configurable to be a 50mA infrared LED sink port
pin. (See 11.7 Port Options.)
1.5.9 Port E I/O Pins (PTE4/D–, PTE3/D+, PTE1/TCH0)
Port E is a 3-bit special function port that shares two of its pins with the
USB module and one of its pins with the timer interface module.
PTE1 pin contains a software configurable pullup device to V_REG when
the pin is configured as an input or output.
When the USB module is disabled, the PTE4 and PTE3 pins are
general-purpose bidirectional I/O port pins with 10mA sink capability.
Each pin is open-drain when configured as an output; and each pin
contains a software configurable 5kΩ pullup to V_DD when configured as
an input. The PTE4 pin can also be enabled to trigger the IRQ interrupt.
When the USB module is enabled, the PTE4/D– and PTE3/D+ pins
become the USB module D– and D+ pins. The D– pin contains a
software configurable 1.5kΩ pullup to V_REG. (See Section 10. Timer
Interface Module (TIM), Section 9. Universal Serial Bus Module
(USB) and Section 11. Input/Output Ports (I/O).)
Summary of the pin functions are provided in Table 1-1.
Technical Data
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MC68HC08JB1 — Rev. 2.1
Freescale Semiconductor