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| 型號： | IBM25PPC405GP-3DD200C |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | RISC PROCESSOR, PBGA456 |
| 封裝： | 27 MM, PLASTIC, BGA-456 |
| 文件頁數(shù)： | 52/58頁 |
| 文件大?。?/td> | 878K |
| 代理商： | IBM25PPC405GP-3DD200C |
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PowerPC 405GP Embedded Processor Data Sheet
56
Strapping
While the SysReset input pin is low (system reset), the state of certain I/O pins is read to enable default initial
conditions prior to PPC405GP start-up. The actual capture instant is the nearest reference clock edge before
the deassertion of reset. These pins must be strapped using external pull-up (logical 1) or pull-down
(logical 0) resistors to select the desired default conditions. These pins are use for strap functions only during
reset. They are used for other signals during normal operation. The following table lists the strapping pins
along with their functions and strapping options. The pin for the 456-ball package is listed first (for example,
AF3), followed by the corresponding pin for the 413-ball package (for example, U8), which appears as
AF3/U8.
Strapping Pin Assignments
Function
Option
Ball Strapping
PLL Tuning
for 6
≤ M ≤ 7 use choice 3
for 7 < M
≤ 12 use choice 5
for 12 < M
≤ 32 use choice 6
See Note.
AF3/U8
AF2/T8
AD16/AB15
Choice 1; TUNE[5:0] = 010001
0
Choice 2; TUNE[5:0] = 010010
0
1
Choice 3; TUNE[5:0] = 010011
0
1
0
Choice 4; TUNE[5:0] = 010100
0
1
Choice 5; TUNE[5:0] = 010101
1
0
Choice 6; TUNE[5:0] = 010110
1
0
1
Choice 7; TUNE[5:0] = 010111
1
0
Choice 8; TUNE[5:0] = 100100
1
PLL Forward Divider
D16/A17
B15/B14
Bypass mode
0
Divide by 3
0
1
Divide by 4
1
0
Divide by 6
1
PLL Feedback Divider
B14/A15
C12/A8
Divide by 1
0
Divide by 2
0
1
Divide by 3
1
0
Divide by 4
1
PLB Divider from CPU
P25/R23
L24/J22
Divide by 1
0
Divide by 2
0
1
Divide by 3
1
0
Divide by 4
1
OPB Divider from PLB
L25/K21
J26/F22
Divide by 1
0
Divide by 2
0
1
Divide by 3
1
0
Divide by 4
1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| IBM25PPC405GP-3BD266C | RISC PROCESSOR, PBGA456 |
| IBM25PPC405GP3EE200CZ | 32-BIT, 200 MHz, RISC PROCESSOR, PBGA413 |
| IBM25PPC405GP-3BE200C | 32-BIT, 200 MHz, RISC PROCESSOR, PBGA456 |
| IBM25PPC405GP-3EE266C | 32-BIT, 266.66 MHz, RISC PROCESSOR, PBGA413 |
| IBM25PPC405GP-3DE266CZ | 32-BIT, 266.66 MHz, RISC PROCESSOR, PBGA456 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IBM25PPC405GP-3DE200C | 制造商:IBM 功能描述:Microprocessor, 32 Bit, 456 Pin, Plastic, BGA |
| IBM25PPC405GP3DE200CZ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MICROPROCESSOR|32-BIT|CMOS|BGA|456PIN|PLASTIC |
| IBM25PPC405GP-3DE266C | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MICROPROCESSOR|32-BIT|CMOS|BGA|456PIN|PLASTIC |
| IBM25PPC405GP3DE266CZ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MICROPROCESSOR|32-BIT|CMOS|BGA|456PIN|PLASTIC |
| IBM25PPC405GP-3EE200C | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MICROPROCESSOR|32-BIT|CMOS|BGA|413PIN|PLASTIC |
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