Instruction Manual

__________________________________________________________________________________________________________ 5-18
MAXQ7667 User’s Guide
PORT P0
PIN
FUN CTION
TYPE
FUN CTION ENA B LED W HEN MUL TIPLEXING/PRIORITIZATION
Special T2—Ti mer 2 (Ty pe 2) Output (T2CNA2.6) T2OE0 = 1
Special T2—Timer 2 (Type 2) C ounter Input
(T2CFG2.0) C/T2 = 1 (T2CFG2[2:1])
C CF[1:0] = ! 00b (T2CNA2.6) T2OE0
must be 0
Special T2—Ti mer 2 (Ty pe 2) Gate Input
(T2CNA2.0) G2EN = 1 or
(T2CFG2[2:1])
C CF[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 Inter rupt 6, Input ( EIE0.6) E X6 = 1
This port pin defaults to a weak pul lup input
after a reset. If interrupt 6 is enabled, T2 is
not permi tted at this pin.
Special
T2B—Timer 2 (Ty pe 2) Secondary
Output
(T2CNB2.6) T20E1 = 1
P0.7/T2B
Alternate External Inter rupt 7, Input ( EIE0.7) E X7 = 1
This port pin defaults to a weak pul lup input
after a reset. If interrupt 7 is enable, T2B is
not permi tted at this pin.
Table 5-4. Port P0 Pin Special and Alternate Functions (continued)
PORT P1
PIN
FUN CTION
TYPE
FUN CTION ENA B LED W HEN MUL TIPLEXING/PRIO RITIZATION
Special TD0—JTAG Data Out, Output (S C .7) TAP = 1
P1.0/TD0
Alternate External Inter rupt 0, Input (EIE1.0) E X0 = 1
The JTAG is the defaulted interface and this
port p in is configured as an output and is
ready for JTAG interface after a reset. When
this pin is used as an external inter rupt, the
test serial data output function on this pin is
disab led. This p in is normally weak ly pulled
up to DVDDIO unless the JTAG interface is
in Shift-DR or Shift-IR states w here it is
actively putting out data.
Special TMS—J TAG Mode Select, Input (S C .7) TAP = 1
P1.1/TMS
Alternate External Inter rupt 1, Input (EIE1.1) E X1 = 1
This port pin defaults to a weak pul lup input
and is ready for JTAG interface after a reset.
No s pecial hard ware measure is taken.
Special TDI—JTAG Data In, Input (S C .7) TAP = 1
P1.2/TDI
Alternate External Inter rupt 2, Input (EIE1.2) E X2 = 1
This port pin defaults to a weak pul lup input
and is ready for JTAG interface after a reset.
No s pecial hard ware measure is taken.
Special TCK—JTAG Clock In, Input (S C.7) TAP = 1
P1.3/TCK
Alternate External Inter rupt 3, Input (EIE1.3) E X3 = 1
This port pin defaults to a weak pul lup input
and is ready for JTAG interface after a reset.
No s pecial hard ware 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 Inter rupt 4, Input (EIE1.4) EX4 = 1
This port pin defaults to a weak pul lup input
after a reset. If interrupt 4 is enabled, MOSI
is not permitted at this pin.
Special
MISO— Master In-S lave Out,
Master Mode, Input
—
Special
MISO— Master In-S lave Out,
Slave Mode, Output
—
P1.5/MISO
Alternate External Inter rupt 5, Input (EIE1.5) E X5 =1
This port pin defaults to a weak pul lup 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