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32 Intel
®
80303 and 80302 I/O Processors Specification Update
11. Figure 25-2 on pg 25-2 did not print correctly
Problem: Figure 25-2 on pg 25-2 did not print correctly.
Workaround: Replace Figure 25-2 with the following:
Affected Docs: Intel
®
80303 I/O Processor Developer’s Manual.
12. Table 25-2 on page 25-3 did not print completely
Problem: Table 25-2 on page 25-3 did not print completely
Workaround: Replace Table 25-2 with the following:
Affected Docs: Intel
®
80303 I/O Processor Developer’s Manual
Input Clock Region/Clock Buffered/PLL P_M66EN S_M66EN
P_CLK = 33 MHz
Region 1: 1x P_CLK Buffered
0 0
Region 2: 3x P_CLK PLL
Region 3: 3x P_CLK PLL
Region 4: 1x P_CLK Buffered
P_CLK = 66 MHz
Region 1: 1x P_CLK Buffered
11
Region 2: 3/2x P_CLK PLL
Region 3: 3/2x P_CLK PLL
Region 4: 1x P_CLK Buffered
P_CLK = 66 MHz
Region 1: 1x P_CLK Buffered
10
Region 2: 3/2x P_CLK PLL
Region 3: 3/2x P_CLK PLL
Region 4: 1/2x P_CLK Buffered
NOTE: Combination of P_M66EN=0 and S_M66EN=1 is not supported by the Intel
®
80303 I/O processor.
When P_M66EN=0, the 80303 I/O processor forces S_M66EN=0 ensuring the unsupported condition
never occurs.
A4662-02
SDRAM
DIMM0
DQ(71:0)
I_CLK
P_CLK
DCLKin
DQ(71:0)
DCLKout
SDQ(71:0) SDQ(71:0)
CLK(3:0)
CLK(3:0)
SDRAM
DIMM1