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參數(shù)資料
| 型號(hào)： | IBM25PPC750GXECR5H83T |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, 933 MHz, RISC PROCESSOR, CBGA292 |
| 封裝： | 21 X 21 MM, 1 MM PITCH, LEAD FREE, CERAMIC, BGA-292 |
| 文件頁(yè)數(shù)： | 69/74頁(yè) |
| 文件大?。?/td> | 1054K |
| 代理商： | IBM25PPC750GXECR5H83T |
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Datasheet
IBM PowerPC 750GX RISC Microprocessor
DD1.X
750GX_ds_body.fm SA14-2765-02
September 2, 2005
System Design Information
Page 71 of 73
5.9.4.2 Processor Debug System Enablement when Implementing Precharge Selection
System designers who want to use a processor debug system attached to the 750GX IEEE 1149.1 test
access port (TAP) interface (such as the IBM RISCWatch debug system) should provide a method to assert
QACK after the transition of HRESET. Debug systems use a “soft stop” feature to stop the processor, allow
processor internal states to be read, and then restart of the processor. A soft stop requires the system to be in
a quiescent state before the processor can be queried for internal state values. This is accomplished by the
assertion of a quiescent request (that is, QREQ is asserted) and subsequent acknowledgement (that is,
QACK is asserted). Systems that do not use the power management features; doze, nap, and sleep; and do
not require the extended pre-charge feature can drive the QACK pin with an inverted version of HRESET.
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| IBM25PPC750GXECR6542T | 制造商:IBM 功能描述:POLARIS 1.2 ? 21CBGA293 GR2 LIDLESS 1G - Trays |
| IBM25PPC750GXECR6542V | 制造商:IBM 功能描述:POLARIS 1.2 ? 21CBGA293 GR2 LIDLESS 1G - Trays |
| IBM25PPC750GXECR6582T | 制造商:IBM 功能描述:POLARIS 1.2 ? 21CBGA293 GR2 LIDLS ? 1GHZ - Trays 制造商:IBM 功能描述:IBMIBM25PPC750GXECR6582T MPU 21CBGA293 |
| IBM25PPC750GXECR6582V | 制造商:IBM 功能描述:POLARIS 1.2 ? 21CBGA293 GR2 LIDLS ? 1GHZ - Trays |
| IBM25PPC750GXECR6H42T | 制造商:IBM 功能描述:POLARIS 1.2 ? 21CBGA293 GR2 LIDLS 1GHZ - Trays |
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