Datasheet

LMH0307
www.ti.com SNLS286I –APRIL 2008–REVISED APRIL 2013
Table 1. SMBus Registers (continued)
Address R/W Name Bits Field Default Description
08h R/W TEST 7:5 CMPCMD 000 Compare command. Determines whether
the peak value or the current value of the
Termination Fault counters is read in
registers 0Ah-0Dh.
000: Resets compare value to 00; registers
0Ah-0Dh all show current counter values.
Sets detection to look for MAX peak values.
001: Capture counter 0. Register 0Ah
shows peak value.
010: Capture counter 1. Register 0Bh
shows peak value.
011: Capture counter 2. Register 0Ch
shows peak value.
100: Capture counter 3. Register 0Dh
shows peak value.
101: Resets compare value to 1Fh. Sets
detection to look for MIN peak values.
110, 111: Reserved.
4:0 RSVD 00000 Reserved as 00000. Always write 00000 to
these bits.
09h R REV 7:5 RSVD 000 Reserved.
4:3 DIEREV 10 Die Revision.
2:0 PARTID 010 Part Identifier. Note that single output
devices (LMH0303) have the LSB=1. Dual
output devices (LMH0307) have the LSB=0.
0Ah R TF0PCOUNT 7:5 RSVD 000 Reserved.
4:0 TF0PCOUNT 00000 This is either the current value of TF0P
Counter, or the peak value of the counter,
depending on CMPCMD in register 08h.
0Bh R TF0NCOUNT 7:5 RSVD 000 Reserved.
4:0 TF0NCOUNT 00000 This is either the current value of TF0N
Counter, or the peak value of the counter,
depending on CMPCMD in register 08h.
0Ch R TF1PCOUNT 7:5 RSVD 000 Reserved.
4:0 TF1PCOUNT 00000 This is either the current value of TF1P
Counter, or the peak value of the counter,
depending on CMPCMD in register 08h.
0Dh R TF1NCOUNT 7:5 RSVD 000 Reserved.
4:0 TF1NCOUNT 00000 This is either the current value of TF1N
Counter, or the peak value of the counter,
depending on CMPCMD in register 08h.
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