71m6541g-igtr/f Maxim Integrated Products, Inc., 71m6541g-igtr/f Datasheet - Page 26

• Manufacturer Part Number: 71m6541g-igtr/f
• Description: 71m6541d/71m6541f/71m6542f Energy Meter Ics
• Manufacturer: Maxim Integrated Products, Inc.

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RTM DATA0 (32 bits)
RTM DATA1 (32 bits)
RTM DATA2 (32 bits)
RTM DATA3 (32 bits)
RTM TIMING
ADC TIMING
CE TIMING
ADC EXECUTION
CE_EXECUTION
MUX_STATE
MUX_SYNC
NOTES:
XFER_BUSY
MUX STATE
MUX_SYNC
CKTEST
CE_BUSY
CK32
RTM
CK32
Figure 11: Timing relationship between ADC MUX, CE, and RTM Serial Transfer
RTM
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.
FLAG
S
0
0
1
150
30
0
© 2008–2011 Teridian Semiconductor Corporation
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CK COUNT = CE_CYCLES + 1CK for each ADC transfer
ADC0
FLAG
450
INITIATED BY A CE OPCODE AT END OF SUM INTERVAL
Figure 10: RTM Timing
0
MUX_DIV
1
1
30
Conversions, MUX_DIV=4 is shown
31
ADC MUX Frame
ADC1
900
FLAG
S
2
0
1
30
ADC2
31
1350
FLAG
MAX CK COUNT
3
0
1
ADC3
30
1800
Settle
140
31
S
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