ZSSC3036 datasheet(23/49 Pages) RENESAS

23 / 49 page

ZSSC3036 Datasheet

April 20, 2016

The SPI/I

2C™ commands supported by the ZSSC3036 are listed in Table 3.1. The command to read an address

in the user memory is the same as its address. The command to read the 16-bit memory status of the data at an

address in user memory is the address plus 20HEX. The command to write to an address in user memory is the

address plus 40HEX.

There is an IDT-reserved section of memory that can be read but not over-written by the user.

Table 3.1

SPI/I

2C™ Commands

Note: Every return starts with a status byte followed by the data word as described in section 3.5.1.

Command

(Byte)

Return

Description

Normal

Mode

Command

Mode

00HEX to 17HEX

16-bit user data

Read data in the user memory address

(00HEX to 17HEX) matching the command

(might not be using all addresses).

yes

20HEX to 37HEX

16-bit user memory status

Read memory status for address specified by

command minus 20HEX (addresses 00HEX to

17HEX respectively; see section 3.6.2 for a

description of the memory status).

yes

40HEX to 57HEX

followed by data

(0000HEX to

FFFFHEX)

—

Write data to user memory at address

specified by command minus 40HEX

(addresses 00HEX to 17HEX respectively; might

not be using all addresses).

yes

70HEX to 7EHEX

16-bit IDT-reserved memory

data

Read data in IDT-reserved memory at

address specified by command minus 70HEX

(second set of addresses 00HEX to 0EHEX

respectively).

yes

80HEX to 8EHEX

16-bit IDT-reserved memory

status

Read memory status bytes for IDT-reserved

memory data at address specified by

command minus 80HEX (second set of

addresses 00HEX to 0EHEX respectively; see

section 3.6.2 for a description of the memory

status bytes).

yes

5EHEX

—

Increment user memory page pointer.

yes

A0HEX to A7HEX

followed by

XXXXHEX

(see Table 3.2)

16-bit wide raw data

Get_Raw

This command can be used to

perform a measurement and write the raw

ADC data into the output register. The LSB of

the command determines how the AFE

configuration

loaded

for

the

Get_Raw measurement (see Table 3.2).

yes

A8HEX

—

Start_NOM

Exit Command Mode and

transition to Normal Mode.

yes

A9HEX

—

Start_CM

Exit Normal Mode and transition

to Command Mode.

yes

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