MC68HC705K1 Datasheet, PDF (17/140 Pages) Freescale Semiconductor, Inc – HCMOS Microcontroller Unit

Freescale Semiconductor, Inc.
General Description
Mask Options
• 16-pin plastic dual in-line package (PDIP)
• 16-pin small outline integrated circuit package (SOIC)
• 16-pin ceramic DIP (cerdip)
1.4 Mask Options
These MC68HC705K1 options are programmable in the mask option
register (MOR):
• Enabled or disabled COP watchdog
• Edge-triggered or edge- and level-triggered external interrupt pins
• Enabled or disabled port A external interrupt function
• Enabled or disabled low-voltage reset function
• Enabled or disabled STOP instruction
• Oscillator driven by crystal or ceramic resonator or oscillator
driven by RC circuit
• 2-pin RC-driven oscillator or 3-pin RC-driven oscillator
• Enabled or disabled port A and port B programmable pulldown
devices
The mask option register is an EPROM/OTPROM byte at location
$0017. Section 9. EPROM/OTPROM describes the mask option
register and the EPROM/OTPROM programming procedure.
1.5 MCU Structure
Figure 1-1 shows the structure of the MC68HC705K1 MCU.
MC68HC705K1 — Rev. 2.0
General Description
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Technical Data