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參數(shù)資料
| 型號： | YSS951-VZ |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封裝： | LEAD FREE, LQFP-48 |
| 文件頁數(shù)： | 9/34頁 |
| 文件大小： | 1355K |
| 代理商： | YSS951-VZ |
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YSS951
17
■ Microprocessor Interface
〔
1〕 I2C Bus
A microprocessor can control this LSI via I2C bus. Connect the SCL and SDA pins to I2C pin of host
processor.
This will allows host processor to access to registers and built-in memory in this LSI.
[Note 1] The I2C bus is the serial interface defined by Philips. For details of I2C specification, see “I2C Bus
Specification” issued by Philips.
[Note 2] This LSI supports standard and fast modes. But High-speed Mode (Hs mode) is not supported.
(a) I2C Bus Device Address
The I2C bus device address, allocated to this LSI, is [7’b110_1100].
A6
A5
A4
A3
A2
A1
A0
1
0
1
0
[Note] YDA155 (DD-1), YDA156 (DD-1SP), and YSS951 (SPR-1) have the same device address; therefore,
two or more these devices cannot be connected on the same I2C Bus.
(b) I2C Bus Data Transfer Format
The data is transmitted or received in MSB first. After this description, the symbols are defined as follows:
S:
START Condition
Sr:
Repeated START Condition
P:
STOP Condition
ACK:
Acknowledge (ACK=0)
NACK: Not acknowledge (ACK=1)
Gray color:
Outputting Data from this LSI
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