参数资料
型号: SME1430LGA-480
元件分类: 微控制器/微处理器
英文描述: 64-BIT, 480 MHz, RISC PROCESSOR, CBGA587
封装: CERAMIC, LGA-587
文件页数: 8/60页
文件大小: 646K
代理商: SME1430LGA-480
16
SME1430LGA-360
SME1430LGA-440
SME1430LGA-480
Highly Integrated 64-Bit RISC; L2-Cache, DRAM, PCI Interfaces
UltraSPARC-IIi CPU
May 1999
Sun Microsystems, Inc
Clock Interface Timing Detail [1] [2] [3]
Figure 3. CLKA 1X Mode: Relation of CLKA to Internal, SRAM, and UPA Clocks
Figure 4. CLKA 2X Mode: Relation of CLKA to Internal, SRAM, and UPA Clock
1. See Figure 28 and the table: "Clock Skew" for skew requirements for CLKA.
2. Note that each CLK_POS has a complementary CLK_NEG not shown.
3. During PLLBYPASS, the Internal, SRAM, and UPA Clock relationships must be the same as in CLKA 1X Mode.
1 X Mode, CLKA
CLKSEL = 0
UPA_CLK_POS
SRAM_CLK_POS
Internal CPU CLK
180–240 MHz
90–120 MHz
45–60 MHz
SRAM_CLK_POS
Internal CPU CLK
2 X Mode, CLKA
CLKSEL = 1
180–240 MHz
360–480 MHz
90–120 MHz
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