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参数资料
| 型号： | S-7760A40XX-TCT1U |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | SPECIALTY MICROPROCESSOR CIRCUIT, PDSO16 |
| 封装： | HALOGEN FREE AND LEAD FREE, TSSOP-16 |
| 文件页数： | 3/54页 |
| 文件大小： | 673K |
| 代理商： | S-7760A40XX-TCT1U |
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PROGRAMMABLE PORT CONTROLLER (PORT EXPANDER WITH BUILT-IN E
2PROM CIRCUIT)
Rev.2.0_00
S-7760A
Seiko Instruments Inc.
11
Device Addressing
To start communication, the master device (MPU) on the system generates a start condition for the slave device
(S-7760A). After that, the master device sends a device address with 7-bit length and Read/Write instruction code with
1-bit length on the SDA bus. The higher 3 bits in a device address (DC2, DC1, DC0) are device codes. A device code can
obtain the fixed value selected by option. Command is omitted if a device code does not correspond. Set the command in
the following 4 bits (C3, C2, C1, C0). Next, by selecting either of Read or Write by Read/Write bit, the S-7760A sends an
acknowledgement signal back. If the second byte is Read, MPU sends an acknowledgement signal back after outputting
data Read with 8-bit length. If it is Write, after outputting Write data with 8-bit length, the S-7760A sends an
acknowledgement signal back. To finish these sequential commands, the S-7760A generates a stop condition as its final
procedure.
There is a 1-byte command for the S-7760A, but inputting the second byte as a dummy does not affect on this device
addressing. In this case, the operation for the second byte is as well as for Read/Write because of the bit corresponding to
Read/Write in the first byte.
Command
DC2
DC1
DC0
C3
C2
C1
C0
R / W
Device
Code
MSB
LSB
Read/Write bit
ACK
Acknowledgment
Signal
STA
Start
B7
B6
B5
B4
B3
B2
B1
B0
MSB
LSB
ACK
STP
Register data
Stop
Figure 13
Device Address
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相关代理商/技术参数 |
参数描述 |
|---|---|
| S-7760A41XX-HCT1 | 制造商:SII 制造商全称:Seiko Instruments Inc 功能描述:PROGRAMMABLE PORT CONTROLLER (PORT EXPANDER WITH BUILT-IN E2PROM CIRCUIT) |
| S-7760A41XX-TCT1G | 制造商:SII 制造商全称:Seiko Instruments Inc 功能描述:PROGRAMMABLE PORT CONTROLLER (PORT EXPANDER WITH BUILT-IN E2PROM CIRCUIT) |
| S-7760A42XX-HCT1 | 制造商:SII 制造商全称:Seiko Instruments Inc 功能描述:PROGRAMMABLE PORT CONTROLLER (PORT EXPANDER WITH BUILT-IN E2PROM CIRCUIT) |
| S-7760A42XX-TCT1G | 制造商:SII 制造商全称:Seiko Instruments Inc 功能描述:PROGRAMMABLE PORT CONTROLLER (PORT EXPANDER WITH BUILT-IN E2PROM CIRCUIT) |
| S-7760A43XX-HCT1 | 制造商:SII 制造商全称:Seiko Instruments Inc 功能描述:PROGRAMMABLE PORT CONTROLLER (PORT EXPANDER WITH BUILT-IN E2PROM CIRCUIT) |
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