Freescale Semiconductor MPC5553 - Page 71

MPC5553/MPC5554 Microcontroller Reference Manual, Rev. 5
2-24 Freescale Semiconductor
BR_
GPIO[72]
External Bus Request
11
General Purpose I/O
P
G
I/O
I/O
V
DDE3
17
F – / Up – / Up
10
AF17 AE13
BG
_
GPIO[73]
External Bus Grant
11
General Purpose I/O
P
G
I/O
I/O
V
DDE3
17
F – / Up – / Up
10
AG16 AE14
BB
_
GPIO[74]
External Bus Busy
11
General Purpose I/O
P
G
I/O
I/O
V
DDE3
17
F – / Up – / Up
10
AG17 AF14
Nexus Signals
EVTI Nexus Event In P I
V
DDE7
F I / Up EVTI / Up G26 F25
EVTO
Nexus Event Out P O
V
DDE7
F O / Low
EVTO
/
High
G27 F26
MCKO Nexus Message Clock Out P O
V
DDE7
F O / Low
MCKO /
Enabled
13
H26 G24
MDO[3:0]
14
Nexus Message Data Out P O
V
DDE7
F O / Low MDO / Low
C23, B21,
C24, C25
C22, D21,
C23, B24
MDO[11:4]_
15
GPIO[82:75]
Nexus Message Data Out
General Purpose I/O
P
G
O
I/O
V
DDE7
F O / Low – / Down
A23, C22,
A20, A24,
B23, B20,
C20, B24
A22, B21,
C20, A23,
B22, C21,
D20, B23
MSEO
[1:0] Nexus Message Start/End Out P O
V
DDE7
F O / High
MSEO /
High
G24, H24 G23, F23
RDY
Nexus Ready Output P O
V
DDE7
F O / High RDY / High J24 H23
JTAG / Test Signals
TCK JTAG Test Clock Input P I
V
DDE7
F TCK / Down TCK / Down E27 D25
TDI JTAG Test Data Input P I
V
DDE7
F TDI / Up TDI / Up E28 D26
TDO
16
JTAG Test Data Output P O
V
DDE7
F TDO / Up
16
TDO / Up F27 E25
TMS JTAG Test Mode Select Input P I
V
DDE7
F TMS / Up TMS / Up E26 E24
JCOMP JTAG Tap Controller Enable P I
V
DDE7
F
JCOMP /
Down
JCOMP /
Down
F26 F24
TEST
Test Mode Select P I
V
DDE7
F TEST / Up TEST / Up F28 E26
FlexCAN Signals
CNTXA_
GPIO[83]
FlexCAN A Transmit
General Purpose I/O
P
G
O
I/O
V
DDEH4
SH – / Up – / Up
17
AF22 AD21
CNRXA_
GPIO[84]
FlexCAN A Receive
General Purpose I/O
P
G
I
I/O
V
DDEH4
SH – / Up – / Up
17
AG22 AE22
CNTXB_
PCSC[3]_
GPIO[85]
FlexCAN B Transmit
DSPI C Peripheral Chip Select
General Purpose I/O
P
A
G
O
O
I/O
V
DDEH4
MH – / Up – / Up AG23 AF22
CNRXB_
PCSC[4]_
GPIO[86]
FlexCAN B Receive
DSPI C Peripheral Chip Select
General Purpose I/O
P
A
G
I
O
I/O
V
DDEH4
MH – / Up – / Up AH23 AF23
Table 2-2. MPC5554 Signal Properties (Continued)
Signal Names
1
Signal Functions
2
P/
A/
G
I/O
Type
Voltage
3
Pad
Type
4
Status Pin Labels / Package
During
Reset
5
After
Reset
6
496
7
416