PC87570 Description
The PC87570 is a highly integrated embedded RISC-based controller optimized for power management (PM), keyboard and mouse (KBC) and system control in portable Personal puter (PC) applications. The PC87570 incorporates National’s pactRISC™ CR16A core, a high performance 16-bit RISC processor core, a Bus Interface Unit (BIU) that directly interfaces with memory and I/O devices, on-chip memory and system support...
PC87570 Key Features
- On-chip frequency multiplier
- Single 32.786KHz crystal
- Software controlled frequency generation
- 16-bit embedded RISC processor core Bus Interface Unit (BIU)
- Three address zones for static devices (SRAM, ROM FLASH, I/O)
- Configurable wait states and fast read bus cycles
- 3.3 and 5V operation with mixed voltage system support
- Reduced power consumption capability
- Back-drive protection
- Three power modes, switched by software or hardware: o Active mode operating frequency 4-10MHz o o Idle (20 µA) Power Of