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| 型號(hào)： | P89LV51RD2BA |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-bit 80C51 3 V low power 64 kB Flash microcontroller with 1 kB RAM |
| 中文描述： | 8-BIT, FLASH, 33 MHz, MICROCONTROLLER, PQCC44 |
| 封裝： | PLASTIC, MS-018, SOT-187-2, LCC-44 |
| 文件頁(yè)數(shù)： | 42/77頁(yè) |
| 文件大?。?/td> | 349K |
| 代理商： | P89LV51RD2BA |
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Philips Semiconductors
P89LV51RB2/RC2/RD2
8-bit microcontrollers with 80C51 core
Product data
Rev. 04 — 02 December 2004
42 of 77
9397 750 14342
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
In the above example the differentiation among the 3 slaves is in the lower 3 address
bits. Slave 0 requires that bit 0 = 0 and it can be uniquely addressed by 1110 0110.
Slave 1 requires that bit 1 = 0 and it can be uniquely addressed by 1110 0101. Slave
2 requires that bit 2 = 0 and its unique address is 1110 0011. To select Slaves 0 and
1 and exclude Slave 2 use address 1110 0100, since it is necessary to make bit 2 = 1
to exclude slave 2. The Broadcast Address for each slave is created by taking the
logical OR of SADDR and SADEN. Zeros in this result are treated as don’t-cares. In
most cases, interpreting the don’t-cares as ones, the broadcast address will be FF
hexadecimal. Upon reset SADDR and SADEN are loaded with 0s. This produces a
given address of all ‘don’t cares’ as well as a Broadcast address of all ‘don’t cares'.
This effectively disables the Automatic Addressing mode and allows the
microcontroller to use standard UART drivers which do not make use of this feature.
7.6 Serial peripheral interface
7.6.1
SPI features
Master or slave operation
10 MHz bit frequency (max)
LSB first or MSB first data transfer
Four programmable bit rates
End of transmission (SPIF)
Write collision flag protection (WCOL)
Wake-up from idle mode (slave mode only)
7.6.2
SPI description
The serial peripheral interface (SPI) allows high-speed synchronous data transfer
between the P89LV51RB2/RC2/RD2 and peripheral devices or between several
P89LV51RB2/RC2/RD2 devices.
Figure 17
shows the correspondence between
master and slave SPI devices. The SCK pin is the clock output and input for the
master and slave modes, respectively. The SPI clock generator will start following a
write to the master devices SPI data register. The written data is then shifted out of
the MOSI pin on the master device into the MOSI pin of the slave device. Following a
complete transmission of one byte of data, the SPI clock generator is stopped and the
SPIF flag is set. An SPI interrupt request will be generated if the SPI Interrupt Enable
bit (SPIE) and the Serial Port Interrupt Enable bit (ES) are both set.
Table 29:
Slave 0
Slaves 0, 1 and 2 scheme examples
SADDR =
1110 0000
SADEN =
1111 1001
Given =
1110 0XX0
SADDR =
1110 0000
SADEN =
1111 1010
Given =
1110 0X0X
SADDR =
1110 0000
SADEN =
1111 1100
Given =
1110 00XX
Slave 1
Slave 2
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| P89LV51RD2BA,512 | 功能描述:8位微控制器 -MCU P89LV51RD2BA/PLCC44/TUBEDP// 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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 |
| P89LV51RD2BBC | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit 80C51 3 V low power 16/32/64 kB Flash microcontroller with 1 kB RAM |
| P89LV51RD2BBC,557 | 功能描述:8位微控制器 -MCU 80C51 64K FL / 1K RM 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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 |
| P89LV51RD2BN | 功能描述:8位微控制器 -MCU 3V 64K/1K FL 12/6 CLK ISP/IAP 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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 |
| P89LV51RD2BN,112 | 功能描述:8位微控制器 -MCU 3V 64K/1K FL 12/6 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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 |
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