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參數(shù)資料
| 型號(hào)： | uPSD3234B-40U1T |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Flash Programmable System Devices with 8032 Microcontroller Core |
| 中文描述： | 閃存可編程系統(tǒng)設(shè)備與8032微控制器內(nèi)核 |
| 文件頁(yè)數(shù)： | 72/170頁(yè) |
| 文件大小： | 2717K |
| 代理商： | UPSD3234B-40U1T |
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uPSD3234A, uPSD3234BV, uPSD3233B, uPSD3233BV
72/170
Table 51. Description of the SxCON Bits
Table 52. Selection of the Serial Clock Frequency SCL in Master Mode
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
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| uPSD3234B-40U6T | Flash Programmable System Devices with 8032 Microcontroller Core |
| uPSD3234BV-24T6T | Flash Programmable System Devices with 8032 Microcontroller Core |
| uPSD3234BV-24U1T | Flash Programmable System Devices with 8032 Microcontroller Core |
| uPSD3234BV-24U6T | Flash Programmable System Devices with 8032 Microcontroller Core |
| uPSD3234BV-40U1T | Flash Programmable System Devices with 8032 Microcontroller Core |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UPSD3234B-40U6 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash Programmable System Device with 8032 Microcontroller Core |
| UPSD3234B-40U6T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 Microcontroller Core and 64Kbit SRAM |
| UPSD3234BV | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 Microcontroller Core |
| UPSD3234BV-24T1 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash Programmable System Device with 8032 Microcontroller Core |
| UPSD3234BV-24T1T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash Programmable System Device with 8032 Microcontroller Core |
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