MC68HC908JG16 Datasheet, PDF (36/324 Pages) Motorola, Inc – Microcontrollers

General Description
1.6.8 Port A Input/Output (I/O) Pins (PTA7/KBA7/AD7–PTA0/KBA0/AD0)
Port A is a 8-bit special function port that shares its pins with the analog-
to-digital converter and keyboard interrupt module. (See Section 14.
Input/Output (I/O) Ports, Section 13. Analog-to-Digital Converter
(ADC), and Section 16. Keyboard Interrupt Module (KBI).) Each pin
contains a software configurable pullup device to V_DD when the pin is
configured as an input. (See 14.8 Port Options.)
1.6.9 Port B I/O Pins (PTB0)
Port B is an 1-bit general-purpose bidirectional I/O port pin and contains
a software configurable pullup device to V_DD when the pin is configured
as an input. (See Section 14. Input/Output (I/O) Ports and 14.8 Port
Options.)
1.6.10 Port C I/O Pins (PTC1/RxD, PTC0/TxD)
Port C is a 2-bit special function port that shares its pins with the SCI
module. (See Section 14. Input/Output (I/O) Ports.) Each pin contains
a software configurable pullup device to V_DD when the pin is configured
as an input. (See 14.8 Port Options.)
1.6.11 Port D I/O Pins (PTD3–PTD0)
PTD3–PTD0 are general-purpose bidirectional I/O port pins; open-drain
when configured as output. (See Section 14. Input/Output (I/O) Ports.)
PTD3–PTC2 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 14.8 Port Options.)
1.6.12 Port E I/O Pins (PTE4/D–, PTE3/D+, PTE2/T2CH01, PTE1/T1CH01, 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 two timer interface modules.
Each PTE2–PTE0 pin contains a software configurable pullup device to
V_DD when the pin is configured as an input or output.
Technical Data
36
General Description
MC68HC908JG16 — Rev. 1.1
Freescale Semiconductor