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PM8313 датащи(PDF) 41 Page - PMC-Sierra, Inc |
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PM8313 датащи(HTML) 41 Page - PMC-Sierra, Inc |
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41 / 192 page ![]() PM8313 D3MX DATA SHEET PMC-920702 ISSUE 5 M13 MULTIPLEXER 31 Pin Name Type Pin No. Function WRB Input 56 The active low write strobe (WRB) signal is low during a D3MX register write access. The D7- D0 bus contents are clocked into the addressed register on the rising WRB edge while CSB is low. D0 D1 D2 D3 D4 D5 D6 D7 I/O 34 35 37 38 39 41 42 44 The bidirectional data bus (D7-D0) is used during D3MX register read and write accesses. A0 A1 A2 A3 A4 A5 A6 A7 Input 47 48 49 50 51 52 53 54 The address bus (A8-A0) selects specific registers during D3MX register accesses. A8/TRS 55 The test register select (TRS) signal discriminates between normal and test mode register accesses. TRS is high during test mode register accesses, and is low during normal mode register accesses. The TRS input has an integral pull down resistor. TRS should be connected to ground for normal mode register access. RSTB Input 58 The active low reset (RSTB) signal provides an asynchronous D3MX reset. RSTB is a Schmitt triggered input with an integral pull up resistor. |
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