GENERAL DESCRIPTION
The MSM63P180 is an M6318x series one-time-programmable ROM version product of OLMS-63K family, which employs Okis original CPU core nX-4/250.
The MSM63P180 has one-time PROM as internal program memory.
The MSM63188 and other mask ROM-version products have mask ROM as internal program memory.
The specifications of the MSM63P180 are equal to those of the MSM63188 except for electrical characteristics, packaging, and some functions.
The MSM63P180 is used for evaluating the software development of M6318x series products.

FEATURES
• Rich instruction set
   439 instructions
      Transfer, rotate, increment/decrement, arithmetic operations, comparison, logic operations,
      mask operations, bit operations, ROM table reference, external memory transfer, stack
      operations, flag operations, branch, conditional branch, call/return, control.
• Rich selection of addressing modes
   Indirect addressing of four data memory types, with current bank register, extra bank
   register, HL register and XY register.
   Data memory bank internal direct addressing mode.
• Processing speed
   Two clocks per machine cycle, with most instructions executed in one machine cycle.
   Minimum instruction execution time : 61 ms (@ 32.768 kHz system clock)
   1 ms (@ 2 MHz system clock)
• Clock generation circuit
   Low-speed clock : 32.768 kHz crystal oscillator
   High-speed clock : 2 MHz (Max.) RC or ceramic oscillator select
• Program memory space
   16K words (PROM) Basic instruction length is 16 bits/1 word
• Data memory space 3584 nibbles
• External data memory space 64 Kbytes (expandable by using an I/O port)
• Stack level
   Call stack level : 16 levels
   Register stack level : 16 levels
• I/O ports
   Input ports: Selectable as input with pull-up resistance/input with pull-down resistance/
      high-impedance input
   Output ports: Selectable as P-channel open drain output/N-channel open drain output/
      CMOS output
   Input-output ports: Selectable as input with pull-up resistance/input with pull-down
      resistance/high-impedance input
      Selectable as P-channel open drain output/N-channel open drain
      output/CMOS output
      Can be interfaced with external peripherals that use a different power supply than this device uses.
   Number of ports:
      Input port : 2 ports x 4 bits
      Output port : 6 ports x 4 bits
      Input-output port : 8 ports x 4 bits
• Buzzer function
   Buzzer output : 0.946 to 5.461 kHz (adjustable in 15 steps)
   Buzzer output modes : Intermittent sound 1, 2; simple sound; continuous sound
• Melody output function
   Melody sound frequency : 529 to 2979 Hz
   Tone length : 63 types
   Tempo : 15 types
   Note data : Resides in the program memory
• LCD driver
   Number of segments : 1024 Max. (64 SEG · 16 COM)
   1/1 to 1/16 duty
   1/4 or 1/5 bias (regulator built-in)
   Selectable as all-on mode/all-off mode/power down mode/normal display mode
   Adjustable contrast
• Multiplier/divider circuits
   Multiplier : (8 bits) · (8 bits) fi Product (16 bits)
   Divider : (16 bits) ÷ (8 bits) fi Quotient (16 bits), Remainder (8 bits)
• Reset function
   Reset through RESET pin
   Power-on reset
   Reset by low-speed oscillation halt
• Battery check
   Low-voltage supply check
   Criterion voltage : Selectable as 2.2 V or 2.8 V
• Power supply backup
   Backup circuit (voltage multiplier) enables operation at 1.45 V minimum
• Timers and counter
   8-bit timer x 4
      Selectable as auto-reload mode/capture mode/clock frequency measurement mode
   Watchdog timer x 1
      Overflows in 2 sec.
   100 Hz timer x 1
      Measurable in steps of 1/100 sec.
   15-bit time base counter x 1
      1, 2, 4, 8, 16, 32, 64, and 128 Hz signals can be read
• Time base capture function
   Captures the time base counter output values (32, 64, 128, and 256 Hz) upon the rise (fall) of
   P1.0 and P1.1
• Serial port
   Mode : UART mode, synchronous mode
   UART communication speed : 1200 bps, 2400 bps, 4800 bps, 9600 bps
   Clock frequency in synchronous mode : 32.768 kHz (internal clock mode), external
   clock frequency
   Data length : 5 to 8 bits
• Shift register
   Shift clock : 1x or 1/2x system clock, timer 1 overflow,
   external clock
Data length : 8 bits
• Interrupt sources
   External interrupt : 6
   Internal interrupt : 14 (watchdog timer interrupt is a nonmask
able interrupt)
• Operating voltage
   When backup used : VDD = 1.45 to 2.7 V
   When backup not used : VDD = 2.7 to 5.5 V
• Package:
   176-pin plastic LQFP (LQFP176-P-2424-0.50-BK)
      Product name :
            MSM63P180-xxxGS-BK (written PROM)
            MSM63P180-NGS-BK (blanked PROM)
            xxx indicates a code number.