mc68hc908ap8a Freescale Semiconductor, Inc, mc68hc908ap8a Datasheet - Page 20

• Manufacturer Part Number: mc68hc908ap8a
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

General Description
Features of the CPU08 include the following:
1.3 MCU Block Diagram
Figure 1-1
20
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Timebase module
Serial communications interface module 1 (SCI)
Serial communications interface module 2 (SCI) with
infrared (IR) encoder/decoder
Serial peripheral interface module (SPI)
System management bus (SMBus), version 1.0/1.1
(multi-master IIC bus)
8-channel, 10-bit analog-to-digital converter (ADC)
IRQ1 external interrupt pin with integrated pullup
IRQ2 external interrupt pin with programmable pullup
8-bit keyboard wakeup port with integrated pullup
32 general-purpose input/output (I/O) pins:
–
–
–
Low-power design (fully static with stop and wait modes)
Master reset pin (with integrated pullup) and power-on reset
System protection features
–
–
–
–
48-pin low quad flat pack (LQFP), 44-pin quad flat pack (QFP), and 42-pin shrink dual-in-line
package (SDIP)
Specific features of the MC68HC908AP64A in 42-pin SDIP are:
–
–
Enhanced HC05 programming model
Extensive loop control functions
16 addressing modes (eight more than the HC05)
16-bit Index register and stack pointer
Memory-to-memory data transfers
Fast 8 × 8 multiply instruction
Fast 16/8 divide instruction
Binary-coded decimal (BCD) instructions
Optimization for controller applications
Efficient C language support
31 shared-function I/O pins
8 LED drivers (sink)
6 × 25mA open-drain I/O with pullup
Optional computer operating properly (COP) reset, driven by internal RC oscillator
Low-voltage detection with optional reset or interrupt
Illegal opcode detection with reset
Illegal address detection with reset
30 general-purpose l/Os only
External interrupt on IRQ1 only
shows the structure of the MC68HC908AP64A.
MC68HC908AP A-Family Data Sheet, Rev. 3
Freescale Semiconductor