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參數資料
| 型號： | P87LPC760 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Low power, low price, low pin count (14 pin) microcontroller with 1 kbyte OTP |
| 中文描述： | 低功耗，低價格，低引腳數（14針），1字節檢察官辦公室微控制器 |
| 文件頁數： | 22/56頁 |
| 文件大小： | 290K |
| 代理商： | P87LPC760 |
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Philips Semiconductors
Preliminary data
P87LPC760
Low power, low price, low pin count (14 pin)
microcontroller with 1 kbyte OTP
2002 Mar 07
19
SU01535
BIT
P2M1.7
P2M1.6
P2M1.5
P2M1.4
SYMBOL
P2S
P1S
P0S
ENCLK
FUNCTION
When P2S = 1, this bit enables Schmitt trigger inputs on Port 2.
When P1S = 1, this bit enables Schmitt trigger inputs on Port 1.
When P0S = 1, this bit enables Schmitt trigger inputs on Port 0.
When ENCLK is set and the 87LPC760 is configured to use the on-chip RC oscillator, a clock
output is enabled on the X2 pin (P2.0). Refer to the Oscillator section for details.
When set, the P1.2 pin is toggled whenever Timer 0 overflows. The output frequency is therefore
one half of the Timer 0 overflow rate. Refer to the Timer/Counters section for details.
These bits, along with the matching bits in the P2M2 register, control the output configuration of
P2.1 and P2.0 respectively
1
.
P2M1.2
T0OE
P2M1.1, P2M1.0
—
(P2M1.0)
(P2M1.1)
T0OE
–
ENCLK
P0S
P1S
P2S
0
1
2
3
4
5
6
7
P2M1
Reset Value: 00h
Not Bit Addressable
Address: A4h
1. See Table 4, Port Output Configuration Settings.
Figure 13. Port 2 Mode Register 1 (P2M1)
Keyboard Interrupt (KBI)
The Keyboard Interrupt function is intended primarily to allow a
single interrupt to be generated when any key is pressed on a
keyboard or keypad connected to specific pins of the P87LPC760,
as shown in Figure 14. This interrupt may be used to wake up the
CPU from Idle or Power Down modes. This feature is particularly
useful in handheld, battery powered systems that need to carefully
manage power consumption yet also need to be convenient to use.
The P87LPC760 allows any pin of port 0 to be enabled to cause this
interrupt. Port pins are enabled by the setting of bits in the KBI
register, as shown in Figure 15. The Keyboard Interrupt Flag (KBF)
in the AUXR1 register is set when any enabled pin is pulled low
while the KBI interrupt function is active. An interrupt will generated
if it has been enabled. Note that the KBF bit must be cleared by
software.
Due to human time scales and the mechanical delay associated with
keyswitch closures, the KBI feature will typically allow the interrupt
service routine to poll port 0 in order to determine which key was
pressed, even if the processor has to wake up from Power Down
mode. Refer to the section on Power Reduction Modes for details.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| P87LPC760BDH | 功能描述:8位微控制器 -MCU 80C51 1K/128 OTP RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 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 安裝風格:SMD/SMT |
| P87LPC760BDH,112 | 功能描述:8位微控制器 -MCU 80C51 1K/128 OTP RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 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 安裝風格:SMD/SMT |
| P87LPC760BDH,118 | 功能描述:8位微控制器 -MCU 14 PIN MCU 1KBYTE OTP RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 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 安裝風格:SMD/SMT |
| P87LPC760BN | 功能描述:8位微控制器 -MCU 1K/128 OTP 2.7-6V COMM DIP RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 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 安裝風格:SMD/SMT |
| P87LPC760BN,112 | 功能描述:8位微控制器 -MCU 1K/128 OTP 2.7-6V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 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 安裝風格:SMD/SMT |
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