Signal Description
MPC5606S Microcontroller Reference Manual, Rev. 7
88 Freescale Semiconductor
3.8 Functional ports
The functional port pins are listed in Table 3-4.
TDO JTAG test data out M1 O Output,
None
34 39 N3 —
TMS JTAG test mode select S I Input, Pullup 35 41 M3 —
EVTI Nexus event input M1 I None, None — 37 A11 —
EVTI Nexus event input M1 I Input, Pullup — — — T3
EVTO Nexus event output M1 O None, None — 35 D12 —
EVTO Nexus event output M1 O Input, Pullup — — — R3
MCKO Nexus message clock output F O None, None — 33 B12 —
MCKO Nexus message clock output F O Input, Pullup — — — T1
MDO0 Nexus message data output 0 M1 O None, None — 38 B11 —
MDO0 Nexus message data output 0 M1 O Input, Pullup — — — T5
MDO1 Nexus message data output 1 M1 O None, None — 40 C11 —
MDO1 Nexus message data output 1 M1 O Input, Pullup — — — P5
MDO2 Nexus message data output 2 M1 O None, None — 42 D11 —
MDO2 Nexus message data output 2 M1 O Input, Pullup — — — P4
MDO3 Nexus message data output 3 M1 O None, None — 44 A10 —
MDO3 Nexus message data output 3 M1 O Input, Pullup — — — L4
MSEO Nexus message start/end output M1 O None, None — 34 C12 —
MSEO Nexus message start/end output M1 O Input, Pullup — — — T2
1
See note for dedicated pins for 208 MAPBGA package.
2
On the 176 LQFP package, the Nexus debug pins are multiplexed with other GPIO. The 208 MAPBGA package
provides dedicated Nexus debug pins as well as multiplexed Nexus debug pins. The multiplexing is described in the
port pin summary table.
3
On the 208 MAPBGA package, the dedicated Nexus debug output pins (MDO[0:3] and MSEO) may drive an
unknown value (high or low) immediately after startup but before the first clock edge propagates through the device,
instead of being weakly pulled low. This may cause high currents if the pins are tied to a supply/ground in the
application. If not used, these pins may be left unconnected.
Table 3-3. Debug pin descriptions (continued)
Debu
g
pin
Function
Pad
typ
e
I/O
directio
n
for
debug
RESET
config
1
Pin number
144 LQFP
176 LQFP
2
208 MAPBGA
Muxed
Dedi-
cated
3
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