Z87C33 Datasheet, PDF (17/72 Pages) Zilog, Inc. – CMOS Z8® MCU Consumer Controller Processor

Z87C33
CMOS Z8“ MCU Consumer Controller Processor
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Functional Description
The Z8 MCU incorporates the following functions that enhance the standard Z8^®
architecture and provide the user with increased design flexibility:
• Program Memory
• ROM Protect
• RAM Protect
• Working Register File
• Expanded Register File
• General-Purpose Registers
• Stack Pointer
• Counter/Timers
• Interrupts
• Clock
• Power-On Reset
• HALT and STOP Modes
• Port Configuration Register
• Comparator
• Stop-Mode Recovery
• Watch-Dog Timer
• Voltage Comparator (V_LV)
RESET. The device is reset in one of the following conditions.
• Power-On Reset
• Watch-Dog Timer
• Stop-Mode Recovery Source
• Low Voltage Recovery
Automatic Power-On Reset circuitry is built into the Z87C33 eliminating the
requirement for an external reset circuit to reset upon power-up.
Program Memory. The Program Memory addresses up to 4 KB of internal memory.
The first 12 bytes of program memory are reserved for the interrupt vectors.
These locations contain six 16-bit vectors that correspond to the six available
PS015601-1003