MPC8271VRMIBA Freescale Semiconductor, MPC8271VRMIBA Datasheet - Page 34

• Manufacturer Part Number: MPC8271VRMIBA
• Description: IC MPU POWERQUICC II 516-PBGA
• Manufacturer: Freescale Semiconductor

Specifications of MPC8271VRMIBA

• Processor Type: MPC82xx PowerQUICC II 32-bit
• Speed: 266MHz
• Voltage: 1.5V
• Mounting Type: Surface Mount
• Package / Case: 516-PBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -

Clock Configuration Modes
34
1
2
3
4
5
6
MODCK[1-3]
MODCK_H-
table entry guarantees only the required minimum CPU operating frequency. The “high” values are for the purpose
of illustration only. Users must select a mode and input bus frequency so that the resulting configuration does not
exceed the frequency rating of the user’s device. The minimum CPU frequency is 150 MHz for commercial
temperature devices and 175 MHz for extended temperature devices. The minimum CPM frequency is 120 MHz.
MODCK[1-3] = three hardware configuration pins.
PCIDF as follows:
PCIDF = 3 > CPM_CLK/PCI_CLK = 4
PCIDF = 5 > CPM_CLK/PCI_CLK = 6
PCIDF = 7 > CPM_CLK/PCI_CLK = 8
PCIDF = 9 > CPM_CLK/PCI_CLK = 5
PCIDF = B > CPM_CLK/PCI_CLK = 6
The “low” values are the minimum allowable frequencies for a given clock mode. The minimum bus frequency in a
PCI_MODCK determines the PCI clock frequency range. Refer to
MODCK_H = hard reset configuration word [28–31] (refer to Section 5.4 in the MPC8260 User’s Manual ).
CPM multiplication factor = CPM clock/bus clock
CPU multiplication factor = Core PLL multiplication factor
CPM_CLK/PCI_CLK ratio. When PCI_MODCK = 1, the ratio of CPM_CLK/PCI_CLK should be calculated from
1110_001
1110_010
1110_011
1110_100
1100_000
1100_001
1100_010
Mode
Table 17. Clock Configurations for PCI Host Mode (PCI_MODCK=1)
3
Low
50.0 100.0
50.0 100.0
50.0 100.0
50.0 100.0
Bus Clock
(MHz)
MPC8272 PowerQUICC II™ Family Hardware Specifications, Rev. 2
High
Multiplication
Factor
CPM
3
3
3
3
4
150.0 300.0
150.0 300.0
150.0 300.0
150.0 300.0
CPM Clock
Low
(MHz)
High
Reserved
Reserved
Reserved
Multiplication
Factor
CPU
4.5
5.5
Table 16
4
5
5
for higher range configurations.
200.0 400.0
225.0 450.0
250.0 500.0
275.0 550.0
CPU Clock
Low
(MHz)
High
1, 2
Division
Factor
(continued)
PCI
Freescale Semiconductor
6
6
6
6
6
Low
25.0
25.0
25.0
25.0
PCI Clock
(MHz)
High
50.0
50.0
50.0
50.0