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參數(shù)資料
| 型號： | MPC8245LVV333D |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, 333 MHz, RISC PROCESSOR, PBGA352 |
| 封裝： | 35 X 35 MM, 1.27 MM PITCH, LEAD FREE, TBGA-352 |
| 文件頁數(shù)： | 42/64頁 |
| 文件大小： | 893K |
| 代理商： | MPC8245LVV333D |
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MOTOROLA
MPC8245 Integrated Processor Hardware Specifications
47
System Design Information
Reset configuration pins should be tied to GND via 1-k
pull-down resistors to ensure a logic 0 level is read
into the configuration bits during reset if the default logic 1 level is not desired.
Any other unused active low input pins should be tied to a logic-one level through weak pull-up resistors
(2–10 k
) to the appropriate power supply listed in Table 17. Unused active high input pins should be tied
to GND through weak pull-down resistors (2–10 k
).
1.7.5
PCI Reference Voltage—LVDD
The MPC8245 PCI reference voltage (LVDD) pins should be connected to a 3.3 ± 0.3 V power supply if
interfacing the MPC8245 into a 3.3-V PCI bus system. Similarly, the LVDD pins should be connected to a
5.0 V ± 5% power supply if interfacing the MPC8245 into a 5-V PCI bus system. For either reference
voltage, the MPC8245 always performs 3.3-V signaling as described in the PCI Local Bus Specification
(Rev. 2.2). The MPC8245 tolerates 5-V signals when interfaced into a 5-V PCI bus system.
1.7.6
MPC8245 Compatibility with MPC8240
The MPC8245 AC timing specifications are backward-compatible with those of the MPC8240, except for
the requirements of item 11 in Table 10. Timing adjustments are needed as specified for Tos
(SDRAM_SYNC_IN to sys_logic_clk offset) time requirements.
The MPC8245 does not support the SDRAM flow-through memory interface.
The nominal core VDD power supply changes from 2.5 V on the MPC8240 to 1.8/2.0 V on the MPC8245.
See Table 2 for details.
The MPC8245 PLL_CFG[0:4] setting 0x02 (0b00010) has a different ‘PCI-to-Mem’ and ‘Mem-to-CPU’
multiplier ratio than the same setting on the MPC8240, and thus, is not backward-compatible. See Table 18
for details.
Most of the MPC8240 PLL_CFG[0:4] settings are subsets of the PCI_SYNC_IN input frequency range
accepted by the MPC8245. However, the parts will not be fully backward-compatible since the ranges of
the two parts do not always match. Note that modes 0x8 and 0x18 of the MPC8245 are not compatible with
There are two additional reset configuration signals on the MPC8245 that are not used as reset configuration
signals on the MPC8240: SDMA0 and SDMA1.
The SDMA0 reset configuration pin selects between the MPC8245 DUART and the MPC8240 backward
compatible mode PCI_CLK[0:4] functionality on these multiplexed signals. The default state (logic 1) of
SDMA0 selects the MPC8240 backward compatible mode of PCI_CLK[0:4] functionality while a logic 0
state on the SDMA0 signal selects DUART functionality. If using the DUART mode, note that four of the
five PCI clocks, PCI_CLK[0:3], are not available.
The SDMA1 reset configuration pin selects between MPC8245 extended ROM functionality and MPC8240
backward-compatible functionality on the multiplexed signals: TBEN, CHKSTOP_IN, SRESET,
TRIG_IN, and TRIG_OUT. The default state (logic 1) of SDMA1 selects the MPC8240
backward-compatible mode functionality, while a logic 0 state on the SDMA1 signal selects extended ROM
functionality. If using the extended ROM mode, note that the TBEN, CHKSTOP_IN, SRESET, TRIG_IN,
and TRIG_OUT functionalities are not available.
The driver names and capability of the pins for the MPC8245 and that of the MPC8240 vary slightly. Refer
to the drive capability table (for the ODCR register at 0x73) in the MPC8240 Integrated Processor
Hardware Specifications and Table 4 for more details.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MPC8245LVV350D | 功能描述:微處理器 - MPU INTEGRATED HOST PROC RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MPC8245LZU266D | 功能描述:微處理器 - MPU 266MHz 505.4MIPS RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MPC8245LZU300D | 功能描述:微處理器 - MPU 300MHz 570MIPS RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MPC8245LZU333D | 功能描述:微處理器 - MPU 333MHz 632.7MIPS RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MPC8245LZU350D | 功能描述:微處理器 - MPU 350MHz 665MIPS RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324 |
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