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参数资料
型号： uPSD3212
厂商： 意法半导体
英文描述： Flash Programmable System Device with 8032 Microcontroller Core(嵌入高速“8032微控制器核”的Flash型可编程系统器件)
中文描述： 闪存可编程系统器件与8032微控制器内核（嵌入高速“8032微控制器核”的闪存型可编程系统器件）
文件页数： 76/155页
文件大小： 1055K
代理商： UPSD3212
μPSD321X
76/155
Table 50. Serial Control Register (S2CON)
Table 51. Description of the S2CON Bits
Table 52. Selection of the Serial Clock Frequency SCL in Master Mode
7
6
5
4
3
2
1
0
CR2
ENII
STA
STO
ADDR
AA
CR1
CR0
Bit
Symbol
Function
7
CR2
This bit along with Bits CR1and CR0 determines the serial clock frequency when SIO is
in the Master Mode.
6
ENII
Enable IIC. When ENI1 = 0, the IIC is disabled. SDA and SCL outputs are in the high
impedance state.
5
STA
START flag. When this bit is set, the SIO H/W checks the status of the I
2
C-bus and
generates a START condition if the bus free. If the bus is busy, the SIO will generate a
repeated START condition when this bit is set.
4
STO
STOP flag. With this bit set while in Master Mode a STOP condition is generated.
When a STOP condition is detected on the I
2
C-bus, the I
2
C hardware clears the STO
flag.
Note:
This bit have to be set before 1 cycle interrupt period of STOP That is, if this bit is
set, STOP condition in Master Mode is generated after 1 cycle interrupt period.
3
ADDR
This bit is set when address byte was received. Must be cleared by software.
2
AA
Acknowledge enable signal. If this bit is set, an acknowledge (low level to SDA) is
returned during the acknowledge clock pulse on the SCL line when:
Own slave address is received
A data byte is received while the device is programmed to be a Master Receiver
A data byte is received while the device is a selected Slave Receiver. When this bit is
reset, no acknowledge is returned.
SIO release SDA line as high during the acknowledge clock pulse.
1
CR1
These two bits along with the CR2 Bit determine the serial clock frequency when SIO is
in the Master Mode.
0
CR0
CR2
CR1
CR0
F
OSC
Divisor
Bit Rate (kHz) at F
OSC
12MHz
24MHz
36MHz
40MHz
0
0
0
16
375
750
X
X
0
0
1
24
250
500
750
833
0
1
0
30
200
400
600
666
0
1
1
60
100
200
300
333
1
0
0
120
50
100
150
166
1
0
1
240
25
50
75
83
1
1
0
480
12.5
25
37.5
41
1
1
1
960
6.25
12.5
18.75
20
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相关代理商/技术参数
参数描述
UPSD3212A 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 MCU with USB and Programmable Logic
UPSD3212A-24T6T 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 MCU with USB and Programmable Logic
UPSD3212A-24U6T 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 MCU with USB and Programmable Logic
UPSD3212A-40T6 功能描述:8位微控制器 -MCU Flash Programmable System Devices 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
UPSD3212A-40T6T 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 MCU with USB and Programmable Logic
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