OrdeOrdeOrdering numbering numbering numberr : ENA1869A : ENA1869Ar : ENA1951 LC87F2W48A CMOS IC 50K-byte FROM and 1536-byte RAM integrated LC87F2W48A Minimum instruction cycle time 250ns (12MHz) V =2.7 to 5.5V DD Ports Normal withstand voltage I/O ports Ports I/O direction can be designated in 1-bit units 38 (P0n, P1n, P2n, P31 to P36, P70 to P73, PWM0, PWM1, XT2, CF2) Dedicated oscillator ports/input ports 2 (XT1, CF1) Reset pin 1 (RES) On-chip Debugger pin 1 (OWP0) Power pins 6 (V 1 to 3, V 1 to 3) SS DD Timers Timer 0: 16 bit timer / counter with capture register Mode 0: 8-bit timer with an 8-bit programmable prescaler (with an 8-bit capture register) 2 channels Mode 1: 8-bit timer with an 8-bit programmable prescaler (with an 8-bit capture register) + 8-bit counter (with an 8-bit capture register) Mode 2: 16-bit timer with an 8-bit programmable prescaler (with a 16-bit capture register) Mode 3: 16-bit counter (with a 16-bit capture register) Timer 1: 16-bit timer/counter that supports PWM/toggle outputs Mode 0: 8-bit timer with an 8-bit prescaler (with toggle outputs) + 8-bit timer/counter with an 8-bit prescaler (with toggle outputs) Mode 1: 8-bit PWM with an 8-bit prescaler 2 channels Mode 2: 16-bit timer/counter with an 8-bit prescaler (with toggle outputs) (toggle outputs also possible from the lower-order 8 bits) Mode 3: 16-bit timer with an 8-bit prescaler (with toggle outputs) (The lower-order 8 bits can be used as PWM.) Timer 4: 8-bit timer with a 6-bit prescaler Timer 5: 8-bit timer with a 6-bit prescaler Timer 6: 8-bit timer with a 6-bit prescaler (with toggle output) Timer 7: 8-bit timer with a 6-bit prescaler (with toggle output) Base Timer (1) The clock is selectable from the subclock (32.768kHz crystal oscillation), system clock, and timer 0 prescaler output. (2) Interrupts are programmable in 5 different time schemes High-speed Clock Counter 1) Can count clocks with a maximum clock rate of 20MHz (at a main clock of 10MHz). 2) Can generate output real-time. Serial Interface SIO 0: 8-bit synchronous serial interface (1) LSB first/MSB first mode selectable (2) Built-in 8-bit baudrate generator (maximum transfer clock cycle=4/3 tCYC) (3) Automatic continuous data transmission (1 to 256 bits, specifiable in 1-bit units, suspension and resumption of data transmission possible in 1-byte units) SIO 1: 8-bit asynchronous / synchronous serial interface Mode 0: Synchronous 8-bit serial I/O (2- or 3-wire configuration, 2 to 512 tCYC transfer clocks) Mode 1: Asynchronous serial I/O (half-duplex, 8-data bits, 1-stop bit, 8 to 2048 tCYC baudrates) Mode 2: Bus mode 1 (start bit, 8-data bits, 2 to 512 tCYC transfer clocks) Mode 3: Bus mode 2 (start detect, 8-data bits, stop detect) No.A1869-2/26