參數(shù)資料
型號(hào): IBM25PPC750GLECR5HA3T
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 1000 MHz, RISC PROCESSOR, CBGA292
封裝: 21X 21 MM, 1 MM PITCH, CERAMIC, BGA-292
文件頁數(shù): 44/76頁
文件大小: 1031K
代理商: IBM25PPC750GLECR5HA3T
Datasheet
IBM PowerPC 750GL RISC Microprocessor
Preliminary
DD1.X
750GL_ds_body.fm 1.2
March 13, 2006
System Design Information
Page 49 of 74
11010
26
16×
31
63
500
1000
11011
27
17×
29
59
500
1000
11100
28
18×
28
56
500
1000
11101
29
19×
26
53
500
1000
11110
30
20×
25
50
500
1000
11111
31
Off2
N/A
Table 5-2. 750GL Microprocessor PLL Configuration (Continued)
PLL_CFG [0:4]
Processor to Bus
Frequency Ratio
(PTBFR)
Frequency Range Supported by VCO Having an Example Range of...
SYSCLK1 (MHz)
Core (MHz)
Binary
Decimal
Minimum
(SYSCLKMIN)
Maximum
(SYSCLKMAX)
Minimum
(Core FrequencyMIN)
Maximum
(Core FrequencyMAX)
Notes:
1. The SYSCLK frequency equals the core frequency divided by the processor-to-bus frequency ratio (PTBFR).
2. In clock-off mode, no clocking occurs inside the 750GL regardless of the SYSCLK input.
3. In PLL-bypass mode, the SYSCLK input signal clocks the internal processor directly, the PLL is disabled, and the bus mode is set
for 1:1 mode operation. This mode is intended for factory use only.
The AC timing specifications given in the document do not apply in PLL-bypass mode.
4. The 2×–3.5× processor-to-bus ratios are currently not supported when miss-under-miss is enabled (HID0(14) = '1').
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