GENERAL DESCRIPTION
The MSM66201/66207 is a high performance microcontroller that employs OKI original nX-8/200 CPU core. This chip includes a 16-bit CPU, ROM, RAM, I/O ports, multifunction 16-bit timers, 10-bit A/D converter, serial I/O port, and pulse width modulator (PWM). The MSM66P201/66P207 is the OTP (One-Time Programmable) version of the MSM66201/66207.

FEATURES
• 64K address space for program memory : Internal ROM : MSM66201 16K bytes
                                                                             MSM66207 32K bytes
• 64K address space for data memory : Internal RAM : MSM66201 512 bytes
                                                                       MSM66207 1024 bytes
• High-speed execution
   Minimum cycle for instruction : 400ns @ 10MHz
• Powerful instruction set : Instruction set superior in orthogonal matrix
                                    8/16-bit data transfer instructions
                                    8/16-bit arithmetic instructions
                                    Multiplication and division operation instructions
                                    Bit manipulation instructions
                                    Bit logic instrucitons
                                    ROM table reference instructions
• Abundant addressing modes : Register addressing
                                          Page addressing
                                          Pointing register indirect addressing
                                          Stack addressing
                                          Immediate value addressing
• I/O port
   Input-output port : 5 ports x 8 bits
                            (Each bit can be assigned to input or output)
   Input port : 1 port x 8 bits
• Built-in multifunctional 16-bit timer : 4
   Following 4 modes can be set for each timer : Auto-reload timer mode
                                                                Clock output mode
                                                                Capture register mode
                                                                Real time output mode
• Serial port : 1 channel (Synchronous/UART switchable mode with baud rate generators)
• 16-bit pulse width modulator : 2
• Watchdog timer
• Transition detector : 4
• 10-bit A/D converter : 8 channels
• Interrupts
   Nonmaskable : 1
   Maskable : Internal 16/external 2
• Stand-by function
   STOP mode : Software clock stop mode
   HALT mode : Software CPU stop mode
   HOLD mode : Hardware CPU stop mode