Ordering number : ENA1835A LC87F1L16A CMOS IC 16K-byte FROM and 2048-byte RAM integrated LC87F1L16A Bus Cycle Time 83.3ns (When CF=12MHz) Note: The bus cycle time here refers to the ROM read speed. Minimum Instruction Cycle Time (tCYC) 250ns (When CF=12MHz) Ports I/O ports Ports whose I/O direction can be designated in 1-bit units 26 (P10 to P17, P20 to P25, P30 to P34, P70 to P73, PWM0, PWM1, XT2) Ports whose I/O direction can be designated in 4-bit units 8 (P00 to P07) USB ports 2 (UHAD+, UHAD-, UHBD+, UHBD-) Dedicated oscillator ports 2 (CF1, CF2) Input-only port (also used for oscillation) 1 (XT1) Reset pins 1 ( ) RES Power supply pins 6 (V 1 to 3, V 1 to 3) SS DD Timers Timer 0: 16-bit timer/counter with 2 capture registers. Mode 0: 8-bit timer with an 8-bit programmable prescaler (with two 8-bit capture registers) 2 channels Mode 1: 8-bit timer with an 8-bit programmable prescaler (with two 8-bit capture registers) + 8-bit counter (with two 8-bit capture registers) Mode 2: 16-bit timer with an 8-bit programmable prescaler (with two 16-bit capture registers) Mode 3: 16-bit counter (with two 16-bit capture registers) 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 lower-order 8 bits) Mode 3: 16-bit timer with an 8-bit prescaler (with toggle outputs) (lower-order 8 bits may be used as a PWM output) 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 outputs) Timer 7: 8-bit timer with a 6-bit prescaler (with toggle outputs) Base timer 1) The clock is selectable from the subclock (32.768kHz crystal oscillation), system clock, and timer 0 prescaler output. 2) Interrupts programmable in 5 different time schemes SIO SIO0: Synchronous serial interface 1) LSB first/MSB first mode selectable 2) Transfer clock cycle: 4/3 to 512/3 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) SIO1: 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) Full Duplex UART 1) Data length: 7/8/9 bits selectable 2) Stop bits: 1 bit (2 bits in continuous transmission mode) 3) Baud rate: 16/3 to 8192/3 tCYC No.A1835-2/23