- 您现在的位置：买卖IC网 > PDF目录11502 > SST89C58RC-40-C-QIF-T (Microchip Technology)IC MCU 8BIT FLASH 40WQFN PDF资料下载
参数资料
| 型号： | SST89C58RC-40-C-QIF-T |
| 厂商： | Microchip Technology |
| 文件页数： | 41/88页 |
| 文件大小： | 0K |
| 描述： | IC MCU 8BIT FLASH 40WQFN |
| 标准包装： | 3,000 |
| 系列： | FlashFlex® |
| 核心处理器： | 8051 |
| 芯体尺寸： | 8-位 |
| 速度： | 40MHz |
| 连通性： | EBI/EMI，I²C，SMBus，UART/USART |
| 外围设备： | 欠压检测/复位，POR，WDT |
| 输入/输出数： | 32 |
| 程序存储器容量： | 32KB（32K x 8） |
| 程序存储器类型： | 闪存 |
| EEPROM 大小： | 2K x 8 |
| RAM 容量： | 1K x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 2.7 V ~ 5.5 V |
| 振荡器型： | 外部 |
| 工作温度： | 0°C ~ 70°C |
| 封装/外壳： | 40-WFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页当前第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页
2011 Silicon Storage Technology, Inc.
DS25100A
12/11
46
FlashFlex MCU
SST89C58RC
Data Sheet
A Microchip Technology Company
Automatic Address Recognition
Automatic Address Recognition (AAR) helps to reduce the time and power required to communicate
with multiple serial devices. Each device shares the same serial link, but has its own address. In this
configuration, a device is only interrupted when it receives its own address, thus eliminating the soft-
ware overhead to compare addresses.
This same feature helps to save power because it can be used in conjunction with idle mode to reduce
the system’s overall power consumption. AAR allows the other slaves to remain in idle mode while only
one is interrupted. By limiting the number of interruptions, the total current draw on the system is
reduced.
There are two ways to communicate with slaves: a group of them at once, or all of them at once. To
communicate with a group of slaves, the master sends out an address called the given address. To
communicate with all the slaves, the master sends out an address called the “broadcast” address.
AAR can be configured as mode 2 or 3 (9-bit modes) and setting the SM2 bit in SCON. Each slave has
its own SM2 bit set waiting for an address byte (9th bit = 1). The Receive Interrupt (RI) flag will only be
set when the received byte matches either the given address or the broadcast address. Next, the slave
then clears its SM2 bit to enable reception of the data bytes (9th bit = 0) from the master. When the 9th
bit = 1, the master is sending an address. When the 9th bit = 0, the master is sending actual data.
If mode 1 is used, the stop bit takes the place of the 9th bit. Bit RI is set only when the received com-
mand frame address matches the device’s address and is terminated by a valid stop bit. Note that
mode 0 cannot be used. Setting SM2 bit in the SCON register in mode 0 will have no effect.
Each slave’s individual address is specified by SFR SADDR. SFR SADEN is a mask byte that defines
“don’t care” bits to form the given address when combined with SADDR. See the example below:
Using the Given Address to Select Slaves
Any bits masked off by a 0 from SADEN become a “don’t care” bit for the given address. Any bit
masked off by a 1, becomes ANDED with SADDR. The “don’t cares” provide flexibility in the user-
defined addresses to address more slaves when using the given address.
Shown in the example above, Slave 1 has been given an address of 1111 0001 (SADDR). The SADEN
byte has been used to mask off bits to a given address to allow more combinations of selecting Slave 1
and Slave 2. In this case for the given addresses, the last bit (LSB) of Slave 1 is a “don’t care” and the
last bit of Slave 2 is a 1. To communicate with Slave 1 and Slave 2, the master would need to send an
address with the last bit equal to 1 (e.g. 1111 0001) since Slave 1’s last bit is a don’t care and Slave 2’s
last bit has to be a 1. To communicate with Slave 1 alone, the master would send an address with the
last bit equal to 0 (e.g. 1111 0000), since Slave 2’s last bit is a 1. See the tables below for other possi-
ble combinations.
Select Slave 1 Only
Slave 1
Given Address
Possible Addresses
1111 0X0X
1111 0000
1111 0100
相关PDF资料 |
PDF描述 |
|---|---|
| SST89E516RD2-40-C-TQJE | IC MCU 8BIT 72KB FLASH 44TQFP |
| SST89C58RC-40-I-TQJE | IC MCU 8BIT FLASH 40TQFP |
| SST89E516RD2-40-I-TQJE | IC MCU 8BIT 72KB FLASH 44TQFP |
| PIC24F16KA101-E/P | MCU 16KB FLASH 1.5KB RAM 20PDIP |
| VE-B10-IY-B1 | CONVERTER MOD DC/DC 5V 50W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SST89C58RC-40-I-NJE | 制造商:Microchip Technology Inc 功能描述:8 BIT MICROCONTROLLER WITH 40K - Rail/Tube 制造商:Microchip Technology Inc 功能描述:Microchip SST89C58RC-40-I-NJE Microcontrollers (MCU) |
| SST89C58RC-40-I-QIF | 功能描述:8位微控制器 -MCU 40K (32Kx8K) SM-Bus 40MHz 2.7-5.5V RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| SST89C58RC-40-I-TQJE | 功能描述:8位微控制器 -MCU 40K (32Kx8K) SM-Bus 40MHz 2.7-5.5V RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| SST89C59 | 制造商:SST 制造商全称:Silicon Storage Technology, Inc 功能描述:FlashFlex51 MCU |
| SST89C59-33-AC-NI | 制造商:SST 制造商全称:Silicon Storage Technology, Inc 功能描述:FlashFlex51 MCU |
发布紧急采购，3分钟左右您将得到回复。