參數(shù)資料
型號: MB91340PMT
元件分類: 微控制器/微處理器
英文描述: 32-BIT, MROM, 66 MHz, RISC MICROCONTROLLER, PQFP176
封裝: PLASTIC, LQFP-176
文件頁數(shù): 89/126頁
文件大?。?/td> 1501K
代理商: MB91340PMT
MB91340/MB91V340
65
6.
8-Bit Up Counter
The 8-bit up counter unit consists of an 8-bit up counter, 8-bit compare register, and their respective control
circuits.
The MB91340/MB91V340 has one 8-bit up counter channel.
8-Bit Up Counter Features
The 8-bit count register can count in the range (0)d to (256)d.
The count clock can be selected from four internal clocks (counts on the rising edge).
Includes a compare function for performing up-counting.
The interrupt generation frequency for compare match and overflow can be controlled.
The compare match and overflow interrupt can be enabled and disabled independently.
A clock can be generated by detecting the flag when a compare match or overflow occurs.
Block Diagram
8 bit
UCC
UCRE
CSTR
CLKS1 CLKS0
OVIE
CITE
OVFF
CMPF
IGR1
IGR0
FDCE
Data bus
COMPR (Compare register)
Counter
clear
UCR (Up count register)
Up
counter
Prescaler
Count clock
φ
(CLKP)
Interrupt
generator
Interrupt request
Flag detection
counters
(IC3 to 0)
Outputs a flag detection
pulse (UCO) when compare
match or overflow occurs.
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