mc68hc705e5 Freescale Semiconductor, Inc, mc68hc705e5 Datasheet - Page 23

• Manufacturer Part Number: mc68hc705e5
• Description: M68hc05 Family Of Microcontrollers Mcus
• Manufacturer: Freescale Semiconductor, Inc

1.5.4 RESET
1.5.5 PA0–PA7
1.5.6 PB0–PB7
1.5.7 PC0–PC3
MC68HC705E5
—
Rev. 1.0
This active low pin is used to reset the MCU to a known startup state by
pulling RESET low. The RESET pin contains an internal Schmitt trigger
as part of its input to improve noise immunity. See
additional information.
These eight I/O lines comprise port A. The state of any pin is software
programmable and all port A lines are configured as input during
power-on or reset. See
information.
These eight I/O lines comprise port B. The state of any pin is software
programmable and all port B lines are configured as input during
power-on or reset. PB7 (SCL) and PB6 (SDA) can be configured as an
M-bus interface. (Refer to
for M-bus pin configurations). PB3–PB5 (TIPL, SCK, and SDIO) can be
configured as a synchronous serial interface (SSI). Refer to
Synchronous Serial Interface (SSI)
Programming
These four I/O lines comprise port C. The state of any pin is software
programmable and all port C lines are configured as input during
power-on or reset.
information.
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
for additional information.
General Description
7.6 Input/Output Programming
7.6 Input/Output Programming
Section 11. Motorola Bus (M Bus) Interface
and to
7.6 Input/Output
General Release Specification
Section 5. Resets
Functional Pin Description
for additional
General Description
for additional
Section 12.
for