71M6511/71M6511H
Single-Phase Energy Meter IC
A Maxim Integrated Products Brand
DATA SHEET
NOVEMBER 2010
CK32
MUX_SYNC
CKTEST
TMUXOUT/RTM
0
1
30
31
0
1
30
31
0
1
30
31
0
1
30
31
FLAG
FLAG
FLAG
FLAG
RTM DATA0 (32 bits)
RTM DATA1 (32 bits)
RTM DATA2 (32 bits)
RTM DATA3 (32 bits)
Figure 14: RTM Output Format
If SSI_CKGATE =1
If 16bit fields
If 32bit fields
If SSI_CKGATE =1
SFR (Output)
SRDY (Input)
SCLK (Output)
SSDATA (Output)
31
30
16
15
1
0
31
30
16
15
1
0
31
1
0
SSI_BEG
SSI_BEG +1
SSI_END
MUX_SYNC
Figure 15: SSI Timing, ( SSI_FPOL = SSI_RDYPOL = 0)
Next field is delayed while SRDY is low
SFR (Output)
SRDY (Input)
SCLK (Output)
SSDATA (Output)
31
30
29
18
17
16
16
16
16
15
14
13
12
Figure 16: SSI Timing, 16-bit Field Example (External Device Delays SRDY)
SFR is the framing pulse. Although CE words are always 32 bits, the SSI interface will frame the entire data block as a single
field, as multiple 16-bit fields, or as multiple 32-bit fields. The SFR pulse is one SCLK clock cycle wide, changes state on the
rising edge of SCLK and precedes the first bit of each field.
Page: 49 of 98
? 2005–2010 Teridian Semiconductor Corporation
V2.7
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