參數(shù)資料
型號: uPSD3234BV-24U6T
廠商: 意法半導體
英文描述: Flash Programmable System Devices with 8032 Microcontroller Core
中文描述: 閃存可編程系統(tǒng)設備與8032微控制器內(nèi)核
文件頁數(shù): 71/170頁
文件大小: 2717K
代理商: UPSD3234BV-24U6T
71/170
uPSD3234A, uPSD3234BV, uPSD3233B, uPSD3233BV
I
2
C INTERFACE
There are two serial I
2
C ports implemented in the
uPSD323X Devices.
The serial port supports the twin line I
2
C-bus, con-
sists of a data line (SDAx) and a clock line (SCLx).
Depending on the configuration, the SDA and SCL
lines may require pull-up resistors.
SDA1, SCL1: the serial port line for DDC
Protocol
SDA2, SCL2: the serial port line for general
I
2
C bus connection
In both I
2
C interfaces, these lines also function as
I/O port lines as follows.
SDA1 / P4.0, SCL1 / P4.1, SDA2 / P3.6, SCL2
/ P3.7
The system is unique because data transport,
clock generation, address recognition and bus
control arbitration are all controlled by hardware.
The I
2
C serial I/O has complete autonomy in byte
handling and operates in 4 modes.
Master transmitter
Master receiver
Slave transmitter
Slave receiver
These functions are controlled by the SFRs.
SxCON: the control of byte handling and the
operation of 4 mode.
SxSTA: the contents of its register may also
be used as a vector to various service
routines.
SxDAT: data shift register.
SxADR: slave address register. Slave address
recognition is performed by On-Chip H/W.
Figure 39. Block Diagram of the I
2
C Bus Serial I/O
Table 50. Serial Control Register (SxCON: S1CON, S2CON)
7
6
5
4
3
2
1
0
CR2
ENII
STA
STO
ADDR
AA
CR1
CR0
AI06649
SCLx
SDAx
Bus Clock Generator
Arbitration and Sync. Logic
Shift Register
Status Register
7
0
Slave Address
7
0
Control Register
7
0
7
0
I
相關PDF資料
PDF描述
uPSD3234BV-40U1T Flash Programmable System Devices with 8032 Microcontroller Core
uPSD3234BV-40U6T Flash Programmable System Devices with 8032 Microcontroller Core
uPSD3234 Flash Programmable System Device with 8032 Microcontroller Core(嵌入高速“8032微控制器核”的Flash型可編程系統(tǒng)器)
uPSD3251(中文) Flash Programmable System Devices with 8032 Microcontroller Core(帶8032微控制器內(nèi)核的Flash可編程系統(tǒng)設備)
uPSD3251 Flash Programmable System Devices with 8032 Microcontroller Core(帶8032微控制器內(nèi)核的Flash可編程系統(tǒng)設備)
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