LC75055PE(2014) Ver la hoja de datos (PDF) - ON Semiconductor
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LC75055PE Datasheet PDF : 26 Pages
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LC75055PE
MICON Interface
As communication interface of a host microcomputer and this LSI, one of IIC method or SPI methods is selectable. The
choice of the communication mode is decided by MODE pin.
MODE: “0”: IIC Interface
“1”: SPI Interface
(1) I2C Interface
The IIC slave transmission and reception interface of this LSI is based on IIC Interface Specification ver.2.1.
(Standard mode: 100Kbps, High speed mode: 400Kbps)
The slave address of this LSI is 0x15 (value of upper 7 bits). The data to transfer assume 8 bits 1 unit. The format of the
data transmission is performed according to the following. In addition, each byte data are the MSB first.
Data write (6byte transmission example)
: Signals from LC75055PE to a master
SP_CL/SCLS
SP_DO/SDAS
W A C23 C22 C21 C20 C19 C18 C17 C16 A C15 C14 C13 C12 C11 C10 C9 C8 A C7 C6 C5 C4 C3 C2 C1 C0 A
Slave address
data
(0x15)
Start
write Ack
Ack
data
Ack
data
Ack
D23 D22 D21 D20 D19 D18 D17 D16 A D15 D14 D13 D12 D11 D10 D9 D8 A D7 D6 D5 D4 D3 D2 D1 D0 A
data
Ack
data
Ack
data
Ack Stop (or Repeated Start)
Make sure to perform communication when BUSYO pin is “L”. If communication is started when BUSYO pin is “H”,
the operation of LC75055 will not be guaranteed.
Data read
SP_CL/SCLS
SP_DO/SDAS
: Signals from LC75055PE to a master
W A C23 C22 C21 C20 C19 C18 C17 C16 A C15 C14 C13 C12 C11 C10 C9 C8 A C7 C6 C5 C4 C3 C2 C1 C0 A
Slave address
Start
Write Ack
data
Ack
data
Ack
Wait until BUSYO becomes "L".
data
Ack Stop
R A D23 D22 D21 D20 D19 D18 D17 D16 A D15 D14 D13 D12 D11 D10 D9 D8 A D7 D6 D5 D4 D3 D2 D1 D0 A
Slave address
data
Start
Read Ack
Ack
data
Ack
data
Ack
D23 D22 D21 D20 D19 D18 D17 D16 A D15 D14 D13 D12 D11 D10 D9 D8 A D7 D6 D5 D4 D3 D2 D1 D0 A
data
Ack
data
Ack
data
Nak Stop (or Repeated Start)
The content of each data is specified by the software specification.
No.A2168-21/26
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