ZSSC3123AI2T datasheet(33/67 Pages) RENESAS

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ZSSC3123 Datasheet

August 16, 2018

10.4.1 EEPROM Error Detection and Correction

The contents of the EEPROM are protected via error checking and correction (ECC). Each of the 32 16-bit words contains 6 parity bits enabling

single-bit error correction (SEC) and double-bit error detection (DED) per word. In Command Mode both SEC and DED errors are reported in

the response byte (see section 11.3). If the fetched EEPROM data has a DED error, then the fetched data will be incorrect; however, if a SEC

error was reported then the fetched data has been corrected, and it is the user’s choice to write the data back to attempt to correct the error.

During Normal Operation Mode, a diagnostic will be flagged on any DED error, but an SEC error will be automatically corrected and not flagged

as a diagnostic.

10.4.2 Alarm Diagnostics

The alarm outputs do not report diagnostics. If diagnostics are needed with alarm outputs, then either digital or PDM outputs must also be used.

10.5 Output Modes

The ZSSC3123 has four different output modes as shown in the following table. See the corresponding reference sections for specifics on each

mode.

Table 19. Output Modes

Output Mode

Reference Sections

I2C

Section 10.6

Read only SPI

PDM

Section 10.7

Alarms

Section 10.8

As illustrated in the pin configuration in section 1, the output communication modes share pins. The Output_Selection bits in EEPROM word

ZMDI_Config (see section 12.1) select which of these outputs will be enabled. The following table shows the pin configuration for the different

output selections.

Table 20. Pin Assignment for Output Selections

Output Selection

I2C (001BIN)

SPI (011BIN)

PDM_C (100BIN)

PDM_C+T (110BIN)

Pin 8

Alarm_Low

PDM_T

Pin 9

Alarm_High

Pin 10

Ready

PDM_C

Pin 12

SDA

MISO

SDA

Pin 13

SCL

SCLK

SCL

Pin 14

No input

No Input

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