W925EP01 Datasheet, PDF (3/108 Pages) Winbond – 8-BIT CID MICROCONTROLLER

W925EP01/ W925EP01FG
• I/O: 64 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.
- P5~P6: Byte addressable. Pull high and I/O mode can be bit controlled, P5~P6 also provide
the address bus A0~A15 for access external program memory or data memory.
- P7: Byte addressable. Pull high and I/O mode can be bit controlled, P7 also provide the
data bus D0~D7 for access external program memory or data memory
• Power mode:
- Normal mode: Normal operation.
- Dual-clock slow operation mode: System is operated from 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
1uA.
• Timer: Dual 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: 12 interrupt sources with two levels of priority.
- 4 interrupts from INT0, INT1, INT2 and INT3.
- 2 interrupts from Timer0 and Timer1.
- 2 interrupt from Serial port0 and Serial port1.
- 1 interrupt from CID.
- 1 interrupt from 13/14-bit Divider.
- 1 interrupt from Comparator.
- 1 interrupt from Watch Dog Timer.
• Divider: 13/14bit divider, clock source from sub-oscillator. Therefore, DIVF set every 0.25/0.5
second.
• Comparator:
- Comparator: 1 analog input from VNEG pin. 1 reference input from VPOS pin.
• Serial ports:
- Serial port0: One full duplex serial port. (UART)
- Serial port1: An 8-bit serial transceiver with SCLK1 and SDATA1. (Serial interface port)
• Package:
- 100pin QFP: W925EP01
- 100pin lead-free QFP: W925EP01FG
Publication Release Date: Apr. 10, 2006
-3-
Revision A2