Motorola MC68HC908MR32 사용자 설명서
Advance Information
MC68HC908MR16/MC68HC908MR32 — Rev. 4.0
30
General Description
MOTOROLA
General Description
1.2 Introduction
The MC68HC908MR32 is a member of the low-cost, high-performance
M68HC08 Family of 8-bit microcontroller units (MCUs). The M68HC08
Family is based on the customer-specified integrated circuit (CSIC)
design strategy. All MCUs in the family use the enhanced M68HC08
central processor unit (CPU08) and are available with a variety of
modules, memory sizes and types, and package types.
M68HC08 Family of 8-bit microcontroller units (MCUs). The M68HC08
Family is based on the customer-specified integrated circuit (CSIC)
design strategy. All MCUs in the family use the enhanced M68HC08
central processor unit (CPU08) and are available with a variety of
modules, memory sizes and types, and package types.
1.3 Features
Features of the MC68HC908MR32 include:
•
High-performance M68HC08 architecture
•
Fully upward-compatible object code with M6805, M146805, and
M68HC05 Families
M68HC05 Families
•
8-MHz internal bus frequency
•
On-chip FLASH memory with in-circuit programming capabilities
of FLASH program memory:
of FLASH program memory:
MC68HC908MR32 — 32 Kbytes
MC68HC908MR16 — 16 Kbytes
MC68HC908MR16 — 16 Kbytes
•
On-chip programming firmware for use with host personal
computer
computer
•
FLASH data security
(1)
•
768 bytes of on-chip random-access memory (RAM)
•
12-bit, 6-channel center-aligned or edge-aligned pulse-width
modulator (PWMMC)
modulator (PWMMC)
•
Serial peripheral interface module (SPI)
•
Serial communications interface module (SCI)
•
16-bit, 4-channel timer interface module (TIMA)
•
16-bit, 2-channel timer interface module (TIMB)
•
Clock generator module (CGM)
1. No security feature is absolutely secure. However, Motorola’s strategy is to make reading or
copying the FLASH difficult for unauthorized users.
copying the FLASH difficult for unauthorized users.