ZSC31015EIG1-R datasheet(28/53 Pages) RENESAS

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November 14, 2016

ZSC31015 Datasheet

20 DATA Byte Packet

(Read EEPROM)

7 6 5 4 3 2 1 0

Stop S

S 7 6 5 4 3 2 1 0

7 6 5 4

5 4 3 2 1 0

...

EEPROM

Byte 19

EEPROM

Byte 18

EEPROM

Byte 2

EEPROM

Byte 1

Stop

1 0 1 0 0 1 0 1

Data Byte A5H

Stop

Figure 3.7

Read EEPROM Contents

There is a variable idle time between packets. This idle time varies with the update rate setting in EEPROM.

Figure 3.8

Transmission of a Number of Data Packets

The table below shows the idle time between packets versus the update rate. This idle time can vary by nominal

+/-15% between parts and over a temperature range of -50 to 150ºC.

Table 3.2

Special Measurement/Idle Time between Packets versus Update Rate

Update Rate Setting

Idle Time between Packets

Special Measurement

1ms

Every 128 bridge measurements

4.85ms

Every 64 bridge measurements

22.5ms

Every 16 bridge measurements

118ms

Every 8 bridge measurements

Transmissions from the IC occur at one of two speeds depending on the update rate programmed in EEPROM. If

the user chooses one of the two fastest update rates (1 ms or 5 ms) then the baud rate of the digital transmission

will be 32 kHz (minimum 26kHz). If, however, the user chooses one of the two slower update rates (25 ms or

125 ms), then the baud rate of the digital transmission will be 8 kHz (maximum 9.6kHz).

The total transmission time for both digital output configurations is shown in Table 3.3.

PStop S

IDLE

Time

0 0 5 4 3 2 1 0

7 6 5 4 3 2 1 0

0 0 5 4 3 2 1 0

7 6 5 4 3 2 1 0

0 0 5 4

IDLE

Time

IDLE

Time

1 0

Packet Transmission

(This example shows 2 DATA packets)

Stop

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