Описание
The S08JM family extends Freescale’s entry-level USB portfolio with one of the industry’s most cost-effective USB control solutions. Featuring on-chip USB 2.0 full-speed device support, it provides a fast, economical and easy way to standardize serial communications in industrial and consumer applications. All MCUs in the S08JM family use the enhanced S08 core. Additionally, Freescale provides two complimentary USB software stacks to help designers simplify applications with USB functionality: USB-LITE Stack by CMX and the USB-MINI Stack by Freescale.
8-bit HCS08 Central Processing Unit (CPU)
- Up to 24 MHz internal bus (48 MHz HCS08 core) frequency offering 2.7 to 5.5V across temperature range of -40°C to +85°C
- Support for up to 32 peripheral interrupt/reset sources
On-Chip Memory
- Up to 60K flash read/program/erase over full operating voltage and temperature
- Up to 4K RAM
- 256 Byte USB RAM
Power-Saving Modes
- Wait plus two stop modes
- Multi-purpose clock generator (MCG)
Peripherals
- USB Device Module
- Analog comparators (ACMP)—Analog comparator with option to compare to internal reference
- Analog to digital converter (ADC)—12-channel, 12-bit resolution
- Two serial communications interface (SCI) modules offering asynchronous communications
- I2C with up to 100 kbps maximum bus loading
- multi-master operation
- programmable slave address
- interrupt driven byte-by-byte data transfer
- supports broadcast mode and 10-bit addressing
- SPI—Two serial peripheral interfaces with full-duplex or single-wire bidirectional
- double-buffered transmit and receive
- master or slave mode;
- MSB-first or LSB-first shifting
- Timer pulse width modulation (TPM)—Up to eight channels
Input/Output
- Up to eight keyboard interrupt (KBI) pins with selectable polarity
- 51 general-purpose input/outputs (GPIO) and one input-only and one output-only pin
System Protection
- Watchdog computer operating properly (COP) reset
- option to run from dedicated 1 kHz internal clock source or bus clock
- Low-voltage detection with reset or interrupt
- selectable trip points
- Illegal op code detection with reset
- Flash block protection
Hardware Development Support
- Single-wire background debug interface
- Breakpoint capability
- On-chip in-circuit emulator (ICE) debug module
