參數(shù)資料
型號: MB91V301A
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 68 MHz, RISC MICROCONTROLLER, CPGA179
封裝: CERAMIC, PGA-179
文件頁數(shù): 115/140頁
文件大?。?/td> 2841K
代理商: MB91V301A
MB91301 Series
76
DS07-16502-4E
8.
U-TIMER (16 bit timer for UART baud rate generation)
The U-TIMER is a 16-bit timer used to generate the baud rate for the UART. Any desired baud rate can be set
using the combination of the chip operating frequency and U-TIMER reload value.
The U-TIMER can also be used as an interval timer by generating an interrupt from a count underflow event.
The MB91301 series has three U-TIMER channels. When used as an interval timer, two U-TIMER channels can
be connected in cascade for a maximum count interval of up to 232
× φ.
Cascade connection is only available for ch0 and ch1 or ch0 and ch2.
Block Diagram
UTIMR (reload register)
UTIM (timer)
clock
load
underflow
under flow U-TIMER 1
to UART
control
f.f.
15
0
MUX
ch.0 only
φ (CLKP)
(Peripheral clock)
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