參數(shù)資料
型號(hào)： ML63P238
廠商： OKI SEMICONDUCTOR CO., LTD.
英文描述： 4-Bit Microcontroller with Built-in 16K Word PROM, POCSAG Decoder, and Melody Circuit(帶內(nèi)置16K字PROM，POCSAG譯碼器和音頻電路的4位微控制器)
中文描述： 4位微控制器內(nèi)置16K的Word中胎膜早破，POCSAG碼解碼器，和旋律電路（帶內(nèi)置16K的字胎膜早破，POCSAG碼譯碼器和音頻電路的4位微控制器）
文件頁(yè)數(shù)： 1/28頁(yè)
文件大?。?/td> 173K
代理商： ML63P238
Semiconductor
MSM63P238
1/28
GENERAL DESCRIPTION
The MSM63P238 is a CMOS 4-bit microcontroller with a built-in POCSAG (Post Office Code
Standardization Advisory Group) decoder, which employs Oki's original nX-4/250 CPU core.
The MSM63P238 is a one-time-programmable ROM-version product having one-time PROM
(OTP) as internal program memory.
The specifications of the MSM63P238 are equal to those of the MSM63238 except for electrical
characteristics, packaging (only 80-pin flat package is available for the MSM63P238), and some
functions.
FEATURES
The features of the MSM63P238 with an asterisk (*) differ from those of the mask ROM-version
MSM63238.
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
m
s (@ 32.768 kHz system clock)
1
m
s (@ 2 MHz system clock)
Clock generation circuit
Low-speed clock
High-speed clock
: 32.768 kHz/38.4 kHz/76.8 kHz crystal oscillator
: 2 MHz (Max.) RC or ceramic oscillator select
Program memory (PROM) space*
16K words
Basic instruction length is 16 bits/1 word
Data memory space
1K nibbles
External data memory space
64 Kbytes (expandable by using an I/O port)
4-Bit Microcontroller with Built-in 16K Word PROM, POCSAG Decoder, and Melody
Circuit
E2E0041-18-95
This version: Sep. 1998
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