MSM63P180 Datasheet, PDF (1/35 Pages) OKI electronic componets – 4-Bit Microcontroller with Built-in 16K Word PROM and 1024-Dot Matrix LCD Drivers

E2E0043-38-95
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This version_M: _SSe_Mp₆. ₃19_P9₁8₈₀
Previous version: Mar. 1996
MSM63P180
4-Bit Microcontroller with Built-in 16K Word PROM and 1024-Dot Matrix LCD Drivers
GENERAL DESCRIPTION
The MSM63P180 is an M6318x series one-time-programmable ROM version product of OLMS-
63K family, which employs Oki's 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
High-speed clock
: 32.768 kHz crystal oscillator
: 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)
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