Maxim Integrated MAXQ7666 - Manual (Page 272)

Table 8-3. Port Pin Special and Alternate Functions
MAXQ7665/MAXQ7666 User’s Guide
8-10
PORT PIN
FUNCTION
TYPE
FUNCTION ENABLED WHEN MULTIPLEXING/PRIORITIZATION
Special TDO—JTAG Data Out, Output TAP = 1
The JTAG is the default interface; this port pin is
configured as an output and is ready for JTAG
operation after a reset.
P0.0
Alternate INT0—External Interrupt 0, Input EX0 = 1
Special TMS—JTAG Mode Select, Input TAP = 1
This pin defaults to a weak pullup input and is ready
for JTAG operation after a reset.
P0.1
Alternate INT1—External Interrupt 1, Input EX1 = 1
Special TDI—JTAG Data In, Input TAP = 1
This pin defaults to a weak pullup input and is ready
for JTAG operation after a reset.
P0.2
Alternate INT2—External Interrupt 2, Input EX2 = 1
Special TCK—JTAG Clock In, Input TAP = 1
This pin defaults to a weak pullup input and is ready
for JTAG operation after a reset.
P0.3
Alternate INT3—External Interrupt 3, Input EX3 = 1
Special
ADCCNV—ADC Conversion Start,
Input
ADCS2:ADCS0 = 100 or
101
This pin defaults to a weak pullup input after a reset.
P0.4
Alternate INT4—External Interrupt 4, Input EX4 = 1
Special DACLOAD—DAC Load, Input
DACLD2:DACLD0 = 000,
100, or 101
This pin defaults to a weak pullup input after a reset.
P0.5
Alternate INT5—External Interrupt 5, Input EX5 = 1
Special Timer 0 (Type 2) Output T2OE0 = 1 This pin defaults to a weak pullup input after a reset.
Special Timer 0 (Type 2) Counter Input
C/T2 = 1;
CCF1 - CCF0 ≠ 00b;
T2OE0 must be 0
Special Timer 0 (Type 2) Gate Input
G2EN = 1 or CCF1:CCF0 =
11b and CPRL2 = 1;
T2OE0 must be 0;
C/T2 must be 0
P0.6
Alternate INT6—External Interrupt 6, Input EX6 = 1
Special Timer 1 (Type 2) Output T2OE0 = 1 This pin defaults to a weak pullup input after a reset.
Special Timer 1 (Type 2) Counter Input
C/T2 = 1;
CCF1:CCF0 ≠ 00b;
T2OE0 must be 0
Special Timer 1 (Type 2) Gate Input
G2EN = 1 or CCF1:CCF0 =
11b and CPRL2 = 1;
T2OE0 must be 0;
C/T2 must be 0
P0.7
Alternate INT7—External Interrupt 7, Input EX7 = 1
Maxim Integrated