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MPC8270CZQP Datasheet(PDF) 57 Page - Freescale Semiconductor, Inc |
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MPC8270CZQP Datasheet(HTML) 57 Page - Freescale Semiconductor, Inc |
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57 / 80 page  MPC8280 PowerQUICC II™ Family Hardware Specifications, Rev. 1.7 Freescale Semiconductor 57 Pinout Symbols used in Table 21 are described in Table 22. PCI_MODE 4 AF25 SPARE63 V4 No connect 5 AA1, AG4 I/O power 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 Core power U28, U29, K28, K29, A9, A19, B19, M1, M2, Y1, Y2, AC1, AC2, AH19, AJ19, AH10, AJ10, AJ5 Ground AA5, AB1 6, AB2 7, AF21, AF14, 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 1 Should be tied to VDDH via a 2K Ω external pull-up resistor. 2 The default configuration of the CPM pins (PA[0–31], PB[4–31], PC[0–31], PD[4–31]) is input. To prevent excessive DC current, it is recommended to either pull unused pins to GND or VDDH, or to configure them as outputs. 3 Must be pulled down or left floating. 4 If PCI is not desired, must be pulled up or left floating. 5 Sphere is not connected to die. 6 GNDSYN (AB1): This pin exists as a separate ground signal in MPC826x(A) devices; it does not exist as a separate ground signal on the MPC8280. New designs must connect AB1 to GND and follow the suggestions in Section 4.6, “Layout Practices.” Old designs in which the MPC8280 is used as a drop-in replacement can leave the pin connected to GND with the noise filtering capacitors. 7 XFC (AB2) pin: This pin is used in MPC826x(A) devices; it is not used in MPC8280 because there is no need for 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. Table 22. Symbol Legend Symbol Meaning OVERBAR Signals with overbars, such as TA, are active low. UTM Indicates that a signal is part of the UTOPIA master interface. UTS Indicates that a signal is part of the UTOPIA slave interface. Table 21. MPC8280 and MPC8270 (ZU Package) Pinout List (continued) Pin Name Ball MPC8280/MPC8270 MPC8280 only |
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