Z8801

Zilog January 1988 Product Specification Super8™ MCU ROMless, ROM, and Prototyping Device with EPROM Interlace Z8800,Z8801,Z8820,Z8822 FEATURES Improved Z8t!) instruction set includes multiply and divide instructions, Boolean and BCD operations. Additional instructions support threaded-code languages, such as "Forth." 325 byte registers, including 272 general:purpose registers, and 53 mode and control registers. Addressing of up to 12SK bytes of memory. Two register pOinters allow use of short and fast instructions to access register groups within 600 nsec. Direct Memory Access con~roller (DMA). Two 16-bit counterItimers. Up to 32 bit-programmable and Sbyte-programmable 110 lines, with 2 handshake channels. . Interrupt structure supports: o 27 interrupt sources o 16 interrupt vectors (2 reserved for future versions) o Sinterrupt levels . o Servicing in 600 nsec. (1 levelonly) Full-duplex UARTwith special features. On-chip oscillator. 20 MHz clock. SK byte ROM for ZSS20 GENERAL DESCRIPTION The Zilog SuperS single-chip MCU can be used for development and production. It can be used as I/O- or memory-intensive computers, or configured to address external memory while still supporting many I/O lines. Ne Vee ROMIe. . "" ,." P24 P20 Vee GND Vee XTAL2 XTAU P4< P4s P4e N7 Ne ~~~~~~~~~#~~~~~~~ 9 8 7 6 5 4 3 2 1 U ~ H e U Q H 81 10 60 11 59 12 . 58 I. 57 14 56 15 55 16 54 17 53 18 SUPERa 52 19 51 20 50 21 4. 22 48 2. 47 .4 46 25 ...