mpc5644a Freescale Semiconductor, Inc, mpc5644a Datasheet - Page 112

• Manufacturer Part Number: mpc5644a
• Description: Mpc5644a Microcontroller Data Sheet
• Manufacturer: Freescale Semiconductor, Inc

Electrical characteristics
112
N
1
2
3
4
5
6
7
176 LQFP
208 BGA
324 BGA
496 CSP
Package Nexus Width Nexus Routing
NPC_PCR[FPM] = 0
NPC_PCR[NEXCFG] = 0
The Nexus AUX port runs up to 40 MHz. Set NPC_PCR[MCKO_DIV] to divide-by-two if the system frequency is
greater than 40 MHz.
NPC_PCR[FPM] = 1
Set the NPC_PCR[MCKO_DIV] to divide by two if the system frequency is between 40 MHz and 80 MHz inclusive.
Set the NPC_PCR[MCKO_DIV] to divide by four if the system frequency is greater than 80 MHz.
Pad restrictions limit the Maximum Operation Frequency in these configurations
NPC_PCR[NEXCFG] = 1
Reduced port
mode
Full port
mode
Reduced port
mode
Full port
mode
1
4
1
4
Route to MDO
Route to MDO
Route to MDO
Route to MDO
Table 37. Nexus debug port operating frequency
CAL_MDO
Route to
Preliminary—Subject to Change Without Notice
MPC5644A Microcontroller Data Sheet, Rev. 4
7
2
2
2
2
Nexus Data Out
Nexus Data Out
Nexus Data Out
Nexus Data Out
Cal Nexus Data
MDO[0:3]
Out [0:3]
[0:3]
[0:3]
[0:3]
[0:3]
Nexus Pin Usage
Nexus Data Out
Nexus Data Out
MDO[4:11]
GPIO
[4:11]
GPIO
[4:11]
GPIO
Cal Nexus Data
CAL_MDO[4:1
Out [4:11]
GPIO
GPIO
GPIO
GPIO
1]
Freescale Semiconductor
Max. Operating
Frequency
40 MHz
40 MHz
40 MHz
40 MHz
40 MHz
5,6
5,6
3
3
3