GENERAL DESCRIPTION

The MSM66509/66P509 is a high-performance 16-bit microcontroller that employs OKI original nX-8/500 CPU core.

The MSM66509/66P509 includes a 16-bit CPU, ROM, RAM, a 10-bit A/D converter, serial ports, flexible timers, pulse-width modulator (PWM), and I/O ports.

FEATURES

• Program memory space : 64K bytes

   Internal ROM : 64K bytes

• Data memory space : 64K bytes

   Internal RAM : 2K bytes

• High-speed execution

   Minimum instruction execution time : 125nsec @ 32MHz

• 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 instructions

                                   ROM table reference instructions

• Abundant addressing modes : Register addressing

                                          Page addressing

                                          Pointing register indirect addressing

                                          Stack addressing

                                          Immediate addressing

• I/O port

   Analog input port : 1 port · 16 bits

   Input-output port : 11 ports · 8 bits, 1 port · 4 bits

   (Input/output setting available in bit unit)

• Flexible timers

   Free run counters : 19-bit · 1, 16-bit · 1

   19-bit CAP with a divider : 4

   16-bit double buffer RTO : 6

   16-bit PWM/RTO : 2

   16-bit CAP/RTO : 2

• 8-bit general timer : 1

   8-bit event counter : 1

• 16-bit PWM : 6

   Input clock divider : 4

• Serial ports

   UART mode with BRG : 1

   Synchronous/UART switchable mode

   with BRG : 1

• 10-bit A/D converter : 16 channels

• Transition detector : 6

• Watchdog timer : 1

• Interrupts

   Non-maskable : 1

   Maskable : Internal 32/external 2

                  (4-level priority can be set)

• ROM window function

• Standby modes

   HALT mode

   STOP mode

• Package

   128-pin plastic QFP (QFP128-P-2828-0.80-BK) : (Product name: MSM66509-xxxGS-BK)

                                                                            ··· indicates the code number.