Z86E11

Z86Cl1 CMOS Z8® 4K ROM MCU FEATURES m Complete microcomputer, 4K bytes of ROM, 256 bytes of RAM, 32 I/O lines, and up to 6DK bytes addressable external space each for program and data memory. II! 256-byte register file, including 236 general-purpose registers, four I/O port registers, and 16 status and control registers. (liJ Vectored, priority interrupts for 110, counter/timers, and UART. I:'!l Full-duplex UART and two programmable 8-bit counter/ timers, each with a 6-bit programmable prescaler. June 1987 El Register Pointer so that short, fast instructions can access any of 16 working-register groups in 1.5 !ls. I!!) On-chip oscillator which accepts crystal or external clock drive. C'.I Standby modes-Halt and Stop o Single + 5V power supply-all pins TIL-compatible. 13 12 MHz, 16 MHz o CMOS process GENERAL DESCRIPTION The Z86C11 microcomputer (Figures 1 ~nd 2) introduces a new level of sophistication to single-chip architecture. Compared to earlier single-chip microcomputers, the Z86C11 offers faster execution; more efficient use of memory; more sophisticated interrupt, input/output and bit-manipulation capabilities; and easier system expansion. PORT 0 (NIBBLE PROGRAMMABLE) 110 OR A 6-A15 ,PORT 1 (BYTE PROGRAMMABLE) !IO OR ADo-AD7 RESET +5V RfW GND os XTAL1 AS XTAL2 PO, P20 po, P2, po, P2, PO, P2, po. P2. PO, Z86C11 P2, po, MCU P2, po, P2, Pl, P3, Pl, P3, Pl, P3, Pl, P3, Pl. P3. Pl, P3, Pl, P3. Pl, +5V XTAL2 XTAL1 P3, P30' RESET R/W os AS P3, GND P3, PO, P...