Figure 10: rtm timing, Figure 10, Figure 11 – Rainbow Electronics 71M6542G User Manual

Page 26: Adc timing ce timing rtm timing

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Figure 10: RTM Timing

CK32

MUX STATE

MUX_DIV

Conversions,

MUX_DIV

=4 is shown

Settle

ADC MUX Frame

ADC EXECUTION

MUX_SYNC

CE_EXECUTION

RTM

140

MAX CK COUNT

450

150

900

1350

1800

ADC0

ADC1

ADC2

ADC3

CK COUNT = CE_CYCLES + 1CK for each ADC transfer

NOTES:

1. ALL DIMENSIONS ARE 5MHZ CK COUNTS.
2. THE PRECISE FREQUENCY OF CK IS 150*CRYSTAL FREQUENCY = 4.9152MHz.
3. XFER_BUSY OCCURS ONCE EVERY SUM_SAMPS CODE PASSES.

CE_BUSY

XFER_BUSY

INITIATED BY A CE OPCODE AT END OF SUM INTERVAL

ADC TIMING

CE TIMING

RTM TIMING

Figure 11: Timing relationship between ADC MUX, CE, and RTM Serial Transfer

CKTEST

RTM

FLAG

RTM DATA0 (32 bits)

IGN

RTM DATA1 (32 bits)

IGN

RTM DATA2 (32 bits)

RTM DATA3 (32 bits)

FLAG

MUX_STATE

MUX_SYNC

CK32