GENERAL DESCRIPTION
These peripherals are supported by a six-source, two-level interrupt capability. There are 256 bytes of RAM, and the device supports ROMless operation for application programs. The W78L32 microcontroller has two power reduction modes, idle mode and power-down mode, both of which are software selectable. The idle mode turns off the processor clock but allows for continued peripheral operation. The power-down mode stops the crystal oscillator for minimum power consumption. The external clock can be stopped at any time and in any state without affecting the processor. 2. FEATURES
y Fully static design y Supply voltage of 1.8V to 5.5V y Low power consumption at full supply voltage y DC-24 MHz operation y 256 bytes of on-chip scratchpad RAM y 64K bytes program memory address space y 64K bytes data memory address space y Four 8-bit bidirectional ports y Three 16-bit timer/counters y One full duplex serial port y Boolean processor y Six-source, two-level interrupt capabili...