參數(shù)資料
型號(hào)： ML674000
廠商： OKI SEMICONDUCTOR CO., LTD.
英文描述： CMOS 32-Bit ARM-Based General-Purpose Single-Chip Microcontroller(基于ARM的32位CMOS單片機(jī))
中文描述： 的CMOS 32位基于ARM通用單芯片微控制器（基于ARM公司的32位的CMOS單片機(jī)）
文件頁(yè)數(shù)： 14/42頁(yè)
文件大小： 529K
代理商： ML674000
PEDL674000-02
OKI Semiconductor
ML674000
12/38
DESCRIPTION OF FUNCTIONS
CPU
CPU core:
Operating frequency:
Instructions:
General register bank:
Built-in barrel shifter:
Multiplier:
Built-in debug function:
ARM7TDMI
1 MHz to 33 MHz
ARM instruction (32-bit length) and Thumb instruction (16-bit length) can be mixed.
31 x 32 bits
ALU and barrel shift operations can be executed by one instruction.
32 bits x 8 bits (Modified Booth’s Algorithm)
JTAG interface, break point register
Built-in Memory
RAM:
8 KB (2K x 32 bits)
Connected to processor bus (1 cycle access)
Interrupt Controller
Fast interrupt input (FIQ) and interrupt input (IRQ) are employed as interrupt input signals of ARM core. The
interrupt controller controls these interrupt signals going to ARM core.
(1)
Interrupt sources of ML674000
FIQ: 1 source, external source (external pin: EFIQ_N)
IRQ: 22 sources, internal sources : 18, external sources : 4 (external pins: EXINT [3 : 0])
Interrupt priority level
Priority can be set in 8 levels for each source.
External interrupt pin input
Level sense: Interrupt signal level is selected.
Edge sense:
Rise or fall is selected.
(2)
(3)
Timer
7 channels of 16-bit reload timers are employed. Of these, 1 channel is used as system timer for OS.
The timers of other 6 channels are used in application software.
(1)
System timer: 1 channel
16-bit auto reload timer: Used as system timer for OS
(This timer is incorporated in μPLAT-7B.)
Application timer: 6 channels
16-bit auto reload timer
One shot, interval
Clock can be set for each channel
(2)
WDT
Possesses the function of interval timer mode in addition to the watch dog timer function.
(1)
(2)
(3)
(4)
16-bit timer
Watch dog timer or interval timer mode can be selected
Interrupt reset generation
Maximum period: 200 msec or longer
PWM
This LSI contains two channels of PWM (Pulse Width Modulation) function which can change the duty in a
certain fixed period. The PWM output resolution is 16 bits for each channel.
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