71M6521BE
Energy Meter IC
DATA SHEET
JANUARY 2008
Test Ports
TMUXOUT Pin: One out of 16 digital or 8 analog signals can be selected to be output on the TMUXOUT pin. The function of
the multiplexer is controlled with the I/O RAM register TMUX (0x20AA[4:0]), as shown in Table 58.
TMUX[4:0]
Mode
Analog
Analog
Analog
Analog
Analog
Analog
--
Function
0
1
DGND
Reserved
2
DGND
3-5
Reserved
6
VBIAS
7
Not used
8-0x0F
0x10 – 0x13
0x14
0x15
0x16 – 0x17
0x18
0x19
0x1A
0x1B
0x1C
0X1E
0X1F
Reserved
--
Not used
Digital
Digital
RTM (Real time output from CE)
WDTR_EN (Comparator 1 Output AND V1LT3)
Not used
Digital
Digital
Digital
Digital
--
RXD (from Optical interface, w/ optional inversion)
MUX_SYNC
CK_10M
CK_MPU
Reserved
Digital
Digital
CE_BUSY
XFER_BUSY
Table 58: TMUX[4:0] Selections
Page: 46 of 97
© 2005-2008 TERIDIAN Semiconductor Corporation
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