mpc8270vr Freescale Semiconductor, Inc, mpc8270vr Datasheet - Page 56

• Manufacturer Part Number: mpc8270vr
• Description: Mpc8275 Powerquicc Ii Integrated Communications Processor
• Manufacturer: Freescale Semiconductor, Inc

Pinout
Symbols used in
56
1
2
3
4
5
6
7
PCI_MODE
SPARE6
No connect
I/O power
Core power
Ground
OVERBAR
UTM
UTS
DC current, it is recommended to either pull unused pins to GND or VDDH, or to configure them as outputs.
ground signal on the MPC8280. New designs must connect AB1 to GND and follow the suggestions in
“Layout
to GND with the noise filtering capacitors.
external capacitor to operate the PLL. New designs should connect AB2 (XFC) pin to GND. Old designs in which the
MPC8280 is used as a drop-in replacement can leave the pin connected to the current capacitor.
Should be tied to VDDH via a 2K Ω external pull-up resistor.
The default configuration of the CPM pins (PA[0–31], PB[4–31], PC[0–31], PD[4–31]) is input. To prevent excessive
Must be pulled down or left floating.
If PCI is not desired, must be pulled up or left floating.
Sphere is not connected to die.
GNDSYN (AB1): This pin exists as a separate ground signal in MPC826x(A) devices; it does not exist as a separate
XFC (AB2) pin: This pin is used in MPC826x(A) devices; it is not used in MPC8280 because there is no need for
Symbol
3
MPC8280/MPC8270
Practices.” Old designs in which the MPC8280 is used as a drop-in replacement can leave the pin connected
Table 21. MPC8280 and MPC8270 (ZU and VV Packages) Pinout List (continued)
5
4
Table 21
MPC8280 PowerQUICC™ II Family Hardware Specifications, Rev. 1.8
Signals with overbars, such as TA, are active low.
Indicates that a signal is part of the UTOPIA master interface.
Indicates that a signal is part of the UTOPIA slave interface.
are described in
Pin Name
Table
Table 22. Symbol Legend
22.
MPC8280 only
Meaning
AG21, AG14, AG8, AJ1, AJ2,
AH1, AH2, AG3, AF4, AE5, AC27,
Y27, T27, P27, K26, G27, AE25,
AF26, AG27, AH28, AH29, AJ28,
AJ29, C7, C14, C16, C20, C23,
E10, A28, A29, B28, B29, C27,
D26, E25, H3, M4, T3, AA4, A1,
A2, B1, B2, C3, D4, E5
U28, U29, K28, K29, A9, A19,
B19, M1, M2, Y1, Y2, AC1, AC2,
AH19, AJ19, AH10, AJ10, AJ5
AA5, AB1
AF8, AE7, AF11, AE17, AE23,
AC26, AB25, Y26, V25, T26, R25,
P26, M25, K27, H25, G26, D7,
D10, D14, D16, D20, D23, C9,
E11, E13, E15, E19, E22, B3, G5,
H4, K5, M3, P5, T4, Y5, AA2, AC3
6
, AB2
AA1, AG4
Freescale Semiconductor
AF25
Ball
V4
7
, AF21, AF14,
Section 4.6,