AM186ER Datasheet | Advanced Micro Devices

features provide faster access to memory and various clock input modes - Nonmultiplexed address bus provides glueless .. interface to external RAM and ROM - Phase-locked loop (PLL) enables processor to operate at up to four times clock input frequency n Enhanced integrated peripherals - Thirty-two programmable I/O (PIO) pins - Asynchronous serial port allows full-duplex, 7-bit or 8-bit data transfers - DMA to and from asynchronous serial port - Synchronous serial interface allows half-duplex, bidirectional data transfer to and from ASICs - Reset configuration register - Additional external interrupts - Hardware watchdog timer can generate NMI or system reset - Pseudo static RAM (PSRAM) controller includes auto refresh capability Familiar 80C186 peripherals with enhanced functionality - Two independent DMA channels - Programmable interrupt controller with six external interrupts - Three programmable 16-bit timers - Programmable memory and peripheral chip-select logic - Programmable wait state generator - Power-save clock mode Software-patible with the 80C186 and 80C188 microcontrollers Widely available native development tools, applications, and system software Available in the following packages: - 100-pin, thin quad flat pack (TQFP) - 100-pin, plastic quad flat pack (PQFP) n GENERAL DESCRIPTION The Am186TMER and Am188TMER microcontrollers are par t of the AMD E86™ family of embedded microcontrollers and microprocessors based on the x86 architecture. The Am186ER and Am188ER microcontrollers are the ideal upgrade for designs requiring 80C186/80C188 microcontroller c o m p a t i b i l i t y, i n c r e a s e d p e r f o r m a n c e, s e r i a l munications, a direct bus interface, and integrated memory. The Am186ER and Am188ER microcontrollers integrate memory and the functions of the CPU, nonmultiplexed address bus, timers, chip selects, interrupt controller, DMA controller, PSRAM controller, w a t c h d o g t i m e r, a s y n c h r o n o u s s e r i a l p o r t ,...