MPC8260ACZUMHBB Freescale Semiconductor, MPC8260ACZUMHBB Datasheet - Page 21

• Manufacturer Part Number: MPC8260ACZUMHBB
• Description: IC MPU POWERQUICC II 480-TBGA
• Manufacturer: Freescale Semiconductor
• Series: PowerQUICC IIr

Specifications of MPC8260ACZUMHBB

• Processor Type: MPC82xx PowerQUICC II 32-bit
• Speed: 266MHz
• Voltage: 2V
• Mounting Type: Surface Mount
• Package / Case: 480-TBGA
• Core Size: 32 Bit
• Program Memory Size: 32KB
• Cpu Speed: 266MHz
• Embedded Interface Type: I2C, MII, SPI, TDM, UTOPIA
• Digital Ic Case Style: TBGA
• No. Of Pins: 480
• Rohs Compliant: No
• For Use With: MPC8260ADS-TCOM - BOARD DEV ADS POWERQUICC II
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -

Figure 11
Freescale Semiconductor
MPC8260A PowerQUICC™ II Integrated Communications Processor Hardware Specifications, Rev. 2.0
shows signal behavior in MEMC mode.
Generally, all MPC826xA bus and system output signals are driven from the
rising edge of the input clock (CLKin). Memory controller signals,
however, trigger on four points within a CLKin cycle. Each cycle is divided
by four internal ticks: T1, T2, T3, and T4. T1 always occurs at the rising
edge, and T3 at the falling edge, of CLKin. However, the spacing of T2 and
T4 depends on the PLL clock ratio selected, as shown in
Figure 12
Memory controller signals
1:2, 1:3, 1:4, 1:5, 1:6
CLKin
CLKin
CLKin
PLL Clock Ratio
Figure 12. Internal Tick Spacing for Memory Controller Signals
1:2.5
1:3.5
T1
T1
T1
is a graphical representation of
Table 11. Tick Spacing for Memory Controller Signals
CLKin
V_CLK
T2
T2
T2
Figure 11. MEMC Mode Diagram
1/4 CLKin
3/10 CLKin
4/14 CLKin
Tick Spacing (T1 Occurs at the Rising Edge of CLKin)
T3
T3
T3
T2
NOTE
T4
T4
T4
1/2 CLKin
1/2 CLKin
1/2 CLKin
Table
sp34/sp30
T3
11.
for 1:2, 1:3, 1:4, 1:5, 1:6
for 1:2.5
for 1:3.5
Table
3/4 CLKin
8/10 CLKin
11/14 CLKin
Electrical and Thermal Characteristics
11.
T4
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