參數(shù)資料
型號: MB90F428GPF
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP100
封裝: PLASTIC, QFP-100
文件頁數(shù): 35/99頁
文件大小: 1714K
代理商: MB90F428GPF
MB90420G/5G (A) Series
40
(5) One-shot mode
In down count operation, the count stops when an underflow event (transition from “0000H” to “FFFFH”) occurs.
This function can generate an interrupt at each underflow. While the counter is operating, a rectangular wave
form indicating that the count is in progress can be output form the TOT0 and TOT1 pins.
(6) Block diagram
UF
CLK
3
2
EN
CSL1 CSL0
OUTE OUTL RELD INTE
UF
CNTE TRG
WOD2 WOD1 WOD0
P12/TIN0 *1
<P07/TIN1>
TMRLR0 *1
<TMRLR1>
TMR0 *1
<TMR1>
P11/TOT0 *1
<P06/TOT1>
Internal data bus
16-bit reload register
Reload signal
Reload
control circuit
16-bit timer register (down counter)
Count clock generator circuit
Machine
clock
φ
Prescaler
Gate input
Valid clock
decision circuit
Wait signal
Clear
To UART 0
, 1 *1
<To A/D converter>
Internal clock
Pins
Input
control
circuit
Clock
selector
Inverted
Output signal
generator
circuit
Pins
External clock
Select
signal
Function selection
Operation
control
circuit
Timer control status register (TNGSR0) *1
<TNGSR1>
Interrupt
request signal
#17 (11h) *2
<#28 (10h)>
*1
: Channel 0 and channel 1. Figures in < > are for channel 1.
*2
: Interrupt number
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