71M6543F/H and 71M6543G/GH Data Sheet
Name
Location Rst Wk Dir Description
Chop enable for the reference bandgap circuit. The value of CHOP changes on the
rising edge of the internal MUXSYNC signal according to the value in CHOP_E[1:0]:
CHOP_E[1:0]
2106[3:2]
0
0
R/W
00 = toggle1 01 = positive 10 = reversed 11 = toggle
1except at the mux sync edge at the end of an accumulation interval.
The CHOP settings for the remote sensor.
00 = Auto chop. Change every MUX frame.
01 = Positive
CHOPR[1:0]
2709[7:6] 00 00 R/W
10 = Negative
11 = Auto chop (same as 00)
DIFF0_E
DIFF2_E
DIFF4_E
DIFF6_E
210C[4]
210C[5]
210C[6]
210C[7]
0
0
0
0
0
0
0
0
R/W Enables IADC0-IADC1 differential configuration.
R/W Enables IADC2-IADC3 differential configuration.
R/W Enables IADC4-IADC5 differential configuration.
R/W Enables IADC6-IADC7 differential configuration.
Connects PB and dedicated I/O pins DIO2 through DIO11 to internal resources. If more
than one input is connected to the same resource, the MULTIPLE column below specifies
how they are combined.
2455[2:0]
2455[6:4]
2454[2:0]
2454[6:4]
2453[2:0]
2453[6:4]
2452[2:0]
2452[6:4]
2451[2:0]
2451[6:4]
2450[2:0]
DIO_R2[2:0]
DIO_R3[2:0]
DIO_R4[2:0]
DIO_R5[2:0]
DIO_R6[2:0]
DIO_R7[2:0]
DIO_R8[2:0]
DIO_R9[2:0]
DIO_R10[2:0]
DIO_R11[2:0]
DIO_RPB[2:0]
0
0
0
0
0
0
0
0
0
0
0
Resource
MULTIPLE
DIO_Rx
0
1
2
3
4
5
NONE
–
–
R/W
Reserved
OR
OR
OR
OR
OR
T0 (Timer0 clock or gate)
T1 (Timer1 clock or gate)
IO interrupt (int0)
IO interrupt (int1)
Programs the direction of the first 16 DIO pins. 1 indicates output. Ignored if the pin is
not configured as I/O. See DIO_PV and DIO_PW for special option for DIO0 and DIO1
R/W outputs. See DIO_EEX[1:0] for special option for SEGDIO2 and SEGDIO3. Note that
the direction of DIO pins above 15 is set by SEGDIOx[1]. See PORT_E to avoid power-
up spikes.
DIO_DIR[15:12]
DIO_DIR[11:8]
DIO_DIR[7:4]
DIO_DIR[3:0]
SFR B0[7:4]
SFR A0[7:4]
SFR 90[7:4]
SFR 80[7:4]
F
F
F
F
DIO[15:12]
DIO[11:8]
DIO[7:4]
DIO[3:0]
The value on the first 16 DIO pins. Pins configured as LCD read zero. When written,
changes data on pins configured as outputs. Pins configured as LCD or input ignore
writes. Note that the data for DIO pins above 15 is set by SEGDIOx[0].
SFR B0[3:0]
SFR A0[3:0]
SFR 90[3:0]
SFR 80[3:0]
R/W
v1.2
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105
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