NXP Semiconductors MPC5566 - Output Messages

Nexus
MPC5566 Microcontroller Reference Manual, Rev. 2
25-18 Freescale Semiconductor
Figure 25-5 illustrates the state diagram for MSEO transfers. All transitions not included in the figure are
reserved, and must not be used.
Figure 25-5. MSEO Transfers
25.7.2.2 Output Messages
In addition to sending out messages generated in other Nexus modules, the NPC can also output the device
ID message contained in the device ID register on the MDO pins. The device ID message can also be sent
out serially through TDO.
Table 25-13 describes the device ID message that the NPC can transmit on the auxiliary port. The TCODE
is the first packet transmitted.
Table 25-13. NPC Output Messages
Message Name
Min. Packet
Bits
Max Packet
Bits
Packet
Type
Packet Name Packet Description
Device ID Message
6 6 Fixed TCODE Value = 1
32 32 Fixed ID DID register contents
MSEO = 00
MSEO = 11
MSEO = 01
MSEO = 00
Normal
transfer
End
packet
Start
message
End
message
Idle
MSEO = 00MSEO = 01 MSEO = 11
M
S
EO
=
0
1
M
SEO
=
1
1
M
S
E
O
=
0
0
M
S
E
O
=
1
0
M
S
E
O
=
1
1
MSEO = 01 MSEO = 00
MSEO = 10
MSEO = 01
MSEO = 11
MDO:
invalid
MDO:
invalid
MSEO = 10