W925E240 Datasheet, PDF (3/73 Pages) Winbond – 8-BIT CID MICROCONTROLLER

W925E/C240
• I/O: 40 I/O pins.
− P0: Bit and byte addressable. I/O mode can be bit controlled. Open drain type.
− P1~P3: Bit and byte addressable. Pull high and I/O mode can be bit controlled.
− P4: Byte addressable. Pull high and I/O mode can be bit controlled.
Note: ”CPE*” Customer Premises Equipment
• Power mode:
− Dual-clock slow operation mode: System is operated by the sub-oscillator (Fosc=Fs and Fm is
stopped)
− Idle mode: CPU hold. The clock to the CPU is halted, but the interrupt, timer and watchdog timer
block work normally but CID function is disabled.
− Power down mode: All activity is completely stopped and power consumption is less than 1 µA.
• Timer: 2 13/16-bit timers, or 8-bit auto-reload timers, that are Timer0 and Timer1.
• Watchdog timer: WDT can be programmed by the user to serve as a system monitor.
• Interrupt: 11 interrupt sources with two levels of priority.
− 4 interrupts from INT0, INT1, INT2 and INT3.
− 2 interrupts from Timer0, Timer1.
− 1 interrupt from Serial port.
− 1 interrupt from CID.
− 1 interrupt from 13/14-bit Divider.
− 1 interrupt from Comparator.
− 1 interrupt from Watch Dog Timer.
• Divider: 13/14 bit divider, clock source from sub-oscillator, therefore, DIVF set every 0.25/0.5
second.
• Comparator:
− Comparator: 1 analog inputs from VNEG pin, 2 reference input pins, one is from VPOS pin and
another is from internal regulator output.
• Serial port:
− An 8-bit serial transceiver with SCLK and SDATA.
• Package:
− 100pin LQFP: The part numbers are W925E240 & W925C240
− Lead free 100pin LQFP: The part numbers are W925E240FG & W925G240
Publication Release Date: July 12, 2005
-3-
Revision A10