參數(shù)資料
型號(hào)： PIC18F85J50-I/PT
廠商： Microchip Technology
文件頁(yè)數(shù)： 30/61頁(yè)
文件大小： 0K
描述： IC PIC MCU FLASH 16KX16 80TQFP
產(chǎn)品培訓(xùn)模塊： Asynchronous Stimulus
PIC18 J Series MCU Overview
8-bit PIC® Microcontroller Portfolio
標(biāo)準(zhǔn)包裝： 119
系列： PIC® 18F
核心處理器： PIC
芯體尺寸： 8-位
速度： 48MHz
連通性： EBI/EMI，I²C，SPI，UART/USART，USB
外圍設(shè)備： 欠壓檢測(cè)/復(fù)位，LVD，POR，PWM，WDT
輸入/輸出數(shù)： 65
程序存儲(chǔ)器容量： 32KB（16K x 16）
程序存儲(chǔ)器類型： 閃存
RAM 容量： 3.8K x 8
電壓 - 電源 (Vcc/Vdd)： 2 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 12x10b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 85°C
封裝/外殼： 80-TQFP
包裝： 托盤
產(chǎn)品目錄頁(yè)面： 643 (CN2011-ZH PDF)
配用： AC162087-ND - HEADER MPLAB ICD2 18F87J50 68/84
MA180021-ND - MODULE PLUG-IN 18F87J50 FS USB
AC164328-ND - MODULE SKT FOR 80TQFP
Philips Semiconductors
Product data
P87LPC767
Low power, low price, low pin count (20 pin)
microcontroller with 4-kbyte OTP and 8-bit A/D converter
2002 Mar 25
33
Mode 1
Mode 1 is the same as Mode 0, except that all 16 bits of the timer
register (THn and TLn) are used. See Figure 27
Mode 2
Mode 2 configures the Timer register as an 8-bit Counter (TL1) with
automatic reload, as shown in Figure 28. Overflow from TLn not only
sets TFn, but also reloads TLn with the contents of THn, which must
be preset by software. The reload leaves THn unchanged. Mode 2
operation is the same for Timer 0 and Timer 1.
Mode 3
When Timer 1 is in Mode 3 it is stopped. The effect is the same as
setting TR1 = 0.
Timer 0 in Mode 3 establishes TL0 and TH0 as two separate 8-bit
counters. The logic for Mode 3 on Timer 0 is shown in Figure 29.
TL0 uses the Timer 0 control bits: C/T, GATE, TR0, INT0, and TF0.
TH0 is locked into a timer function (counting machine cycles) and
takes over the use of TR1 and TF1 from Timer 1. Thus, TH0 now
controls the “Timer 1” interrupt.
Mode 3 is provided for applications that require an extra 8-bit timer.
With Timer 0 in Mode 3, an P87LPC767 can look like it has three
Timer/Counters. When Timer 0 is in Mode 3, Timer 1 can be turned
on and off by switching it into and out of its own Mode 3. It can still
be used by the serial port as a baud rate generator, or in any
application not requiring an interrupt.
SU01174
TLn
(8 BITS)
THn
(8 BITS)
OSC/6
OR
OSC/12
OVERFLOW
Tn PIN
TnOE
TOGGLE
CONTROL
C/T = 1
C/T = 0
Tn PIN
TRn
GATE
INTn PIN
INTERRUPT
TFn
Figure 27. Timer/Counter 0 or 1 in Mode 1 (16-Bit Counter)
SU01392
TLn
(8 BITS)
THn
(8 BITS)
OSC/6
or
OSC/12
OVERFLOW
Tn PIN
TnOE
TOGGLE
CONTROL
C/T = 1
C/T = 0
Tn PIN
TRn
GATE
INTn PIN
INTERRUPT
TFn
RELOAD
Figure 28. Timer/Counter 0 or 1 in Mode 2 (8-Bit Auto-Reload)
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