ZSSC3018 Datasheet

© 2020 Renesas Electronics Corporation

30

September 8, 2020

Figure 3.12

S

SlaveAddr

1 A

Status

A

MemDat

<15:8>

A

MemDat

<7:0>

N P

S

SlaveAddr

1 A

Status

A

SensorDat

<15:8>

A

SensorDat

<7:0>

N P

A

TempDat

<15:8>

A

TempDat

<7:0>

(a) Example: after the completion of a Memory Read command

read

read

SensorDat

<23:16>

A

A

TempDat

<23:16>

All mandatory I²C-bus protocol features are implemented. Optional features like clock stretching, 10-bit slave address, etc., are not supported

by the ZSSC3018’s interface.

In I²C High Speed Mode, a command consists of a fixed length of three bytes.

3.6 Memory

In the ZSSC3018, the memory is organized in 16-bit wide registers and can be programmed multiple (at least 1000) times (MTP). There are 57

x 16-bit registers available for customer use. Each register can be re-programmed. Basically, there are two MTP content sectors:



measurement setup information, calibration coefficients, etc.



Renesas Use: Only accessible for write operations by Renesas. The Renesas sector contains specific trim information and is

programmed during manufacturing test by Renesas.

3.6.1 Programming Memory

Programming memory is possible with any specified supply voltage level at VDD. The MTP programming voltage itself is generated by means

of an integrated charge pump, generating an internal memory programming voltage; no additional external voltage, other than VDD (as

specified), needed. A single 16-bit register write will be completed within 16ms after the respective programming command has been sent. After

the memory is programmed, it must be read again to verify the validity of the memory contents.