Maxim Integrated MAXQ7667 - Manual (Page 93)

__________________________________________________________________________________________________________ 5-18
MAXQ7667 User’s Guide
PORT P0
PIN
FUNCTION
TYPE
FUNCTION ENABLED WHEN MULTIPLEXING/PRIORITIZATION
Special T2—Timer 2 (Type 2) Output (T2CNA2.6) T2OE0 = 1
Special T2—Timer 2 (Type 2) Counter Input
(T2CFG2.0) C/T2 = 1 (T2CFG2[2:1])
CCF[1:0] =! 00b (T2CNA2.6) T2OE0
must be 0
Special T2—Timer 2 (Type 2) Gate Input
(T2CNA2.0) G2EN = 1 or
(T2CFG2[2:1])
CCF[1:0] = 11b and
(T2CNA2.2) CPRL2 = 1
(T2CNA2.6) T2OE0 must be 0
(T2CFG2.0) C/T2 must be 0
P0.6/T2
Alternate External Interrupt 6, Input (EIE0.6) EX6 = 1
This port pin defaults to a weak pullup input
after a reset. If interrupt 6 is enabled, T2 is
not permitted at this pin.
Special
T2B—Timer 2 (Type 2) Secondary
Output
(T2CNB2.6) T20E1 = 1
P0.7/T2B
Alternate External Interrupt 7, Input (EIE0.7) EX7 = 1
This port pin defaults to a weak pullup input
after a reset. If interrupt 7 is enable, T2B is
not permitted at this pin.
Table 5-4. Port P0 Pin Special and Alternate Functions (continued)
PORT P1
PIN
FUNCTION
TYPE
FUNCTION ENABLED WHEN MULTIPLEXING/PRIORITIZATION
Special TD0—JTAG Data Out, Output (SC.7) TAP = 1
P1.0/TD0
Alternate External Interrupt 0, Input (EIE1.0) EX0 = 1
The JTAG is the defaulted interface and this
port pin is configured as an output and is
ready for JTAG interface after a reset. When
this pin is used as an external interrupt, the
test serial data output function on this pin is
disabled. This pin is normally weakly pulled
up to DVDDIO unless the JTAG interface is
in Shift-DR or Shift-IR states where it is
actively putting out data.
Special TMS—JTAG Mode Select, Input (SC.7) TAP = 1
P1.1/TMS
Alternate External Interrupt 1, Input (EIE1.1) EX1 = 1
This port pin defaults to a weak pullup input
and is ready for JTAG interface after a reset.
No special hardware measure is taken.
Special TDI—JTAG Data In, Input (SC.7) TAP = 1
P1.2/TDI
Alternate External Interrupt 2, Input (EIE1.2) EX2 = 1
This port pin defaults to a weak pullup input
and is ready for JTAG interface after a reset.
No special hardware measure is taken.
Special TCK—JTAG Clock In, Input (SC.7) TAP = 1
P1.3/TCK
Alternate External Interrupt 3, Input (EIE1.3) EX3 = 1
This port pin defaults to a weak pullup input
and is ready for JTAG interface after a reset.
No special hardware measure is taken.
Special
MOSI—Master Out-Slave In,
Slave Mode, Input
—
Special
MOSI—Master Out-Slave In,
Master Mode, Output
—
P1.4/MOSI
Alternate External Interrupt 4, Input (EIE1.4) EX4 = 1
This port pin defaults to a weak pullup input
after a reset. If interrupt 4 is enabled, MOSI
is not permitted at this pin.
Special
MISO—Master In-Slave Out,
Master Mode, Input
—
Special
MISO—Master In-Slave Out,
Slave Mode, Output
—
P1.5/MISO
Alternate External Interrupt 5, Input (EIE1.5) EX5 =1
This port pin defaults to a weak pullup input
after a reset. If interrupt 5 is enabled, MOSI
is not permitted at this pin.
Table 5-5. Port P1 Pin Special and Alternate Functions