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Epson RTC-8564 JE/NB
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This is an example capture of I2C traffic from/to an Epson RTC-8564 JE/NB
I2C RTC chip, which has a slave address of 0x51 (or 0xa2, if the read/write
bit is included).

## Logic analyzer setup

The logic analyzer used was a ChronoVu LA8 (at 1MHz):

Probe RTC chip pin

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0 (green) SCL
1 (orange) SDA

## Data

The device talking to the RTC was doing the following in an infinite loop:

- Set the RTC to a specific date/time (Nov 22, 2011 - 04:03:54, weekday = 2).

- Read back the current time from the RTC.

This is what the decoded data should look like:

- Setting the date/time:
  S Wr:0xa2 A 0x02 A 0x54 A 0x03 A 0x04 A 0x22 A 0x02 A 0x11 A 0x11 A P

- Reading the current date/time:
  S Wr:0xa2 A 0x02 A Sr Rd:0xa3 A 0x54 A 0x03 A 0x44 A 0x62 A 0x52 A
  0x51 A 0x11 N P

- The abbreviations used above: S = Start, Wr = Write, A = ACK, P = Stop,
  Sr = Repeated start, Rd = Read, N = NACK

The sigrok command line used was:

sigrok-cli -d 0:samplerate=1mhz --samples 8388608 \
 -p '1=SCL,2=SDA' -o rtc_epson_8564je.sr
