W925E625 Datasheet, PDF (3/75 Pages) Winbond – 8-bit CID MICROCONTROLLER

W925E/C625
- DTMF generator/receiver;
- Ring detector: for line reversal for BT, ring burst for CCA or ring signal for Bellcore.
- Two independent OP amps with adjustable gain for Tip/Ring and Telephone Hybrid
connections.
x 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
x Power mode:
- Normal mode: Normal operation
- 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.
x Timer: 2 13/16-bit timers, or 8-bit auto-reload timers, that are Timer0 and Timer1.
x Watchdog timer: WDT can be programmed by the user to serve as a system monitor.
x 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.
x Divider: 13/14 bit divider, clock source from sub-oscillator, therefore, DIVF set every 0.25/0.5 Sec.
x Comparator:
- Comparator:1 analog input from VNEG pin, 2 reference input pins, one is from VPOS pin and
another is from internal 1.0v regulator output.
x Serial port:
- An 8-bit serial transceiver with SCLK and SDATA.
x Package:
- 160pin QFP : The part numbers are W925E625 & W925C625
- Lead free 160pin QFP: The part numbers are W925E625FG & W925G625
Publication Release Date: July 4, 2005
-3-
Revision A10