參數(shù)資料
型號: P87LPC764
廠商: NXP Semiconductors N.V.
英文描述: Low power, low price, low pin count(20 pin) microcontroller with4 kB OTP(帶4 kB OTP的低功耗,低價格,少引腳(20引腳)的微控制器)
中文描述: 低功耗,低價格,低引腳數(shù)(20針)微控制器with4 kB檢察官辦公室(帶4 KB的檢察官辦公室的低功耗,低價格,少引腳(20引腳)的微控制器)
文件頁數(shù): 32/55頁
文件大?。?/td> 274K
代理商: P87LPC764
Philips Semiconductors
Preliminary specification
87LPC764
Low power, low price, low pin count (20 pin)
microcontroller with 4 kB OTP
2000 Jun 01
29
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 25
Mode 2
Mode 2 configures the Timer register as an 8-bit Counter (TL1) with
automatic reload, as shown in Figure 26. 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 27.
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 87LPC764 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 25. 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 26. Timer/Counter 0 or 1 in Mode 2 (8-Bit Auto-Reload)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
P87LPC764BD 制造商:PHILIPS-SEMI 功能描述:
P87LPC764BD,512 功能描述:8位微控制器 -MCU 80C51 4K/128 OTP RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
P87LPC764BD/01 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Low power, low price, low pin count (20 pin) microcontroller with 4 kbyte OTP
P87LPC764BD/01,529 功能描述:8位微控制器 -MCU 4K/128 OTP 2.7-6V LO PWR SO20 RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
P87LPC764BD/CP3220 制造商:NXP Semiconductors 功能描述:- Rail/Tube