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M306V2EEFS датащи(PDF) 239 Page - Renesas Technology Corp |
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M306V2EEFS датащи(HTML) 239 Page - Renesas Technology Corp |
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239 / 271 page ![]() Rev.1.40 Oct 06, 2004 page 239 of 269 M306V2ME-XXXFP, M306V2EEFP Figure 2.17.9 Port P9 direction register Port P8 direction register Symbol Address When reset PD8 03F216 00X000002 Bit name Function Bit symbol W R b7b6 b5 b4 b3 b2 b1 b0 PD8_2 Port P82 direction register PD8_3 Port P83 direction register 0 : Input mode (Functions as an input port) 1 : Output mode (Functions as an output port) PD8_6 Port P86 direction register PD8_7 Port P87 direction register 0 : Input mode (Functions as an input port) 1 : Output mode (Functions as an output port) 1 Reserved bits Must always be set to “0” 00 Reserved bit Must always be set to “1” Nothing is assigned. In an attempt to write to this bit, write “0.” The value, if read, turns out to be indeterminate. Figure 2.17.8 Port P8 direction register Port P9 direction register Bit name Function Bit symbol W R b7 b6 b5 b4 b3 b2 b1 b0 PD9_0 Port P90 direction register PD9_1 Port P91 direction register PD9_4 Port P94 direction register 0 : Input mode (Functions as an input port) 1 : Output mode (Functions as an output port) 1 1 1 Symbol Address When reset PD9 03F316 0016 PD9_2 Port P92 direction register PD9_3 Port P93 direction register Reserved bits Must always be set to “1” Note: Set bit 2 of protect register (address 000A 16) to “1” before rewriting to the port P9 direction register. |
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