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PM5352 数据表(PDF) 39 Page - PMC-Sierra, Inc |
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PM5352 数据表(HTML) 39 Page - PMC-Sierra, Inc |
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39 / 77 page ![]() PM5352 S/UNI STAR DATA SHEET PMC-1990421 ISSUE 2 SATURN USER NETWORK INTERFACE 155 (STAR) PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE 35 Pin Name Type Pin No. Function D[0] D[1] D[2] D[3] D[4] D[5] D[6] D[7] I/O D16 B17 A17 C16 B16 C15 B15 D14 The bi-directional data bus D[7:0] is used during S/UNI-STAR register read and write accesses. A[0] A[1] A[2] A[3] A[4] A[5] A[6] A[7] A[8] A[9] Input A15 C14 B14 A14 D13 C13 B13 A13 C12 B12 The address bus A[9:0] selects specific registers during S/UNI-STAR register accesses. Except for S/UNI-STAR global registers. A[10]/TRS Input A11 The test register select (TRS) signal selects between normal and test mode register accesses. TRS is high during test mode register accesses, and is low during normal mode register accesses. RSTB Input pull-up B10 The active-low reset (RSTB) signal provides an asynchronous S/UNI-STAR reset. RSTB is a Schmitt triggered input with an integral pull-up resistor. ALE Input pull-up C11 The address latch enable (ALE) is active-high and latches the address bus A[7:0] when low. When ALE is high, the internal address latches are transparent. It allows the S/UNI-STAR to interface to a multiplexed address/data bus. ALE has an integral pull-up resistor. |
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