參數(shù)資料
型號(hào): FR65E
廠商: Fujitsu Limited
英文描述: 32-Bit Microcontroller
中文描述: 32位微控制器
文件頁(yè)數(shù): 52/87頁(yè)
文件大小: 369K
代理商: FR65E
MB91307B
52
5.
U-TIMER (16 bit timer for UART baud rate generation)
(1) Overview
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 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.
This device features a 3-channel built-in U-TIMER. By connecting two U-TIMER channels used as interval timers
in a cascade connection, it is possible to count intervals up to a maximum of 2
32
×
φ
.
The available case connections are channel 0 to channel 1, and channel 1 to channel 2.
(2) Register List
(3) Block Diagram
UTIMR
UTIM
UTIMC
(W)
(R)
(R/W)
15
0
8 7
UTIMR (reload register)
UTIM (timer)
Clock
Load
Underflow
Under flow U-TIMER 1
To UART
control
f.f.
15
15
0
0
MUX
Channel 0 only
φ
(Peripheral clock)
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