MC68HC908JB8 Datasheet, PDF (36/286 Pages) Motorola, Inc – MICROCONTROLLERS

General Description
1.5.6 Port A Input/Output (I/O) Pins (PTA7/KBA7–PTA0/KBA0)
PTA7/KBA7–PTA0/KBA0 are general-purpose bidirectional I/O port
pins. (See Section 12. Input/Output Ports (I/O).) Each pin contains a
software configurable pullup device to V_REG when the pin is configured
as an input. (See 12.8 Port Options.) Each pin can also be programmed
as an external keyboard interrupt pin. (See Section 14. Keyboard
Interrupt Module (KBI).)
1.5.7 Port B (I/O) Pins (PTB7–PTB0)
PTB7–PTB0 are general-purpose bidirectional I/O port pins. Each pin
contains a software configurable pullup device to V_REG when the pin is
configured as an input. (See 12.8 Port Options.)
1.5.8 Port C I/O Pins (PTC7–PTC0)
PTC7–PTC0 are general-purpose bidirectional I/O port pins. (See
Section 12. Input/Output Ports (I/O).) Each pin contains a software
configurable pullup device to V_REG when the pin is configured as an
input. (See 12.8 Port Options.)
1.5.9 Port D I/O Pins (PTD7–PTD0)
PTD7–PTD0 are general-purpose bidirectional I/O port pins; open-drain
when configured as output. (See Section 12. Input/Output Ports (I/O).)
PTD5–PTD2 are software configurable to be 10mA sink pins for direct
LED connections. PTD1–PTD0 are software configurable to be 25mA
sink pins for direct infrared LED connections. (See 12.8 Port Options.)
1.5.10 Port E I/O Pins (PTE4/D–, PTE3/D+, PTE2/TCH1, PTE1/TCH0, PTE0/TCLK)
Port E is a 5-bit special function port that shares two of its pins with the
USB module and three of its pins with the timer interface module.
Each PTE2–PTE0 pin contains a software configurable pullup device to
V_REG when the pin is configured as an input or output.
Technical Data
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MC68HC908JB8•MC68HC08JB8•MC68HC08JT8 — Rev. 2.3
General Description
Freescale Semiconductor