參數(shù)資料
型號: UPSD3212AV-40U6T
廠商: 意法半導(dǎo)體
英文描述: Flash Programmable System Devices with 8032 MCU with USB and Programmable Logic
中文描述: 閃存可編程系統(tǒng)設(shè)備與8032具有USB和可編程邏輯控制器
文件頁數(shù): 72/163頁
文件大?。?/td> 2844K
代理商: UPSD3212AV-40U6T
uPSD3212A, uPSD3212C, uPSD3212CV
72/163
I
2
C INTERFACE
The serial port supports the twin line I
2
C-bus, con-
sisting of a data line (SDA1), and a clock line
(SCL1) as shown in Figure
39
. Depending on the
configuration, the SDA1 and SCL1 lines may re-
quire pull-up resistors.
These lines also function as I/O port lines if the I
2
C
bus is not enabled.
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 (see
Tables
50
,
51
, and
Table 52., page 73
):
S2CON: the control of byte handling and the
operation of 4 mode.
S2STA: the contents of its register may also
be used as a vector to various service
routines.
S2DAT: data shift register.
S2ADR: 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 (S2CON)
7
6
5
4
3
2
1
0
CR2
ENII
STA
STO
ADDR
AA
CR1
CR0
AI07430
SCL1
SDA1
Bus Clock Generator
Arbitration and Sync. Logic
Shift Register
Status Register
7
0
Slave Address
7
0
Control Register
7
0
7
0
I
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uPSD3212 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)器件)
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參數(shù)描述
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