Z86C95

The Z86C95 MCU (Microcontroller Unit ) introduces a new level of sophistication to Superintegration™ ICs. The Z86C95 is a member of the Z8® single-chip microcontroller family incorporating a CMOS ROMless Z8 microcontroller with an embedded DSP processor for digital servo control. The DSP slave processor can perform 16-bit x 16-bit multiplicates and accumulates in one clock cycle. Additionally, the Z86C95 is further enhanced with a hardwired 16-bitx16-bit multiplier and a 32-bit/16-bit divider, three 16-bit counter timers with capture and compare registers, a half flash 8-channel 8-bit A/D converter with a 2 msec conversion time, an 8-bit DAC with 1/4 programmable gain stage, UART, serial peripheral interface, and a PWM output channel (Functional Block Diagram). It is fabricated using CMOS technology and offered in an 80-pin QFP, 84-pin PLCC, or 100-pin VQFP package.

The Z86C95 provides up to 16 output address lines thus permitting an address space of up to 64 Kbytes of data and
program memory each. Eight address outputs (AD7-AD0) are provided by a multiplexed, 8-bit, Address/Data bus.The remaining 8 bits are provided via output address bits A15-A8.

There are 256 registers located on chip and organized as 236 general-purpose registers, 16 control and status registers,and four I/O port registers. The register file can be divided into sixteen groups of 16 working registers each. Configuration of the registers in this manner allows the use of short format instructions; in addition, any of the individual registers can be accessed directly. Also, the Z86C95 contains 512 bytes of DSP Program RAM and 128 words of DSP data RAM.