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EM6617 Datasheet(PDF) 46 Page - EM Microelectronic - MARIN SA |
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EM6617 Datasheet(HTML) 46 Page - EM Microelectronic - MARIN SA |
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46 / 65 page 
EM6617 Copyright © 2005, EM Microelectronic-Marin SA 46 www.emmicroelectronic.com 17. Option Register Memory Map The values of the option registers are set by initial reset on power up and through write operations only. Other resets as reset from watchdog, reset from input port A do not change the options register value. Register Name Add Hex Add Dec Power up value Read Bits Write Bits Remarks b'3210 Read/Write Bits OPTDebIntPA OPT[3:0] 75 117 0000 0: NoDebIntPA[0] 1: NoDebIntPA[1] 2: NoDebIntPA[2] 3: NoDebIntPA[3] Option register : Debouncer on port A for interrupt gen. Default: debouncer on OPTIntEdgPA OPT[7:4] 76 118 0000 0: IntEdgPA[0] 1: IntEdgPA[1] 2: IntEdgPA[2] 3: IntEdgPA[3] Option register : Interrupt edge select on port A Default: pos edge OPTNoPullPA OPT[11:8] 77 119 0000 0: NoPullPA[0] 1: NoPullPA[1] 2: NoPullPA[2] 3: NoPullPA[3] Option register : Pull-down selection on port A Default: pull-down OPTNoPdPB OPT[15:12] 78 120 0000 0: NoPdPB[0] 1: NoPdPB[1] 2: NoPdPB[2] 3: NoPdPB[3] Option register : Pull-down selection on port B Default: pull-down OPTNchOpDPB OPT[19:16] 79 121 0000 0: NchOpDPB[0] 1: NchOpDPB[1] 2: NchOpDPB[2] 3: NchOpDPB[3] Option register : Nch. open drain output on port B Default: CMOS output OPTPCandStr OPT[23:20] 7A 122 0000 0: StrobeOutSel0 1: StrobeOutSel1 2: NchOpDPC 3: NoPdPC Strobe output selection Nch. open drain output Pull-down selection on port C OPTSelPB OPT[31:28] 7B 123 0000 0: InpResSleep 1: PB2kHzOut 2: PB32kHzOut 3: PB1kHzOut Port A input reset option Option register : Frequency output on port B OPTInpRSel1 7C 124 0000 0: InpRes1PA[0] 1: InpRes1PA[1] 2: InpRes1PA[2] 3: InpRes1PA[3] Option register : Reset through port A inputs selection, refer to reset part OPTInpRSel2 7D 125 0000 0: InpRes2PA[0] 1: InpRes2PA[1] 2: InpRes2PA[2] 3: InpRes2PA[3] Option register; Reset through port A inputs selection, refer to reset part RegTestEM 7F 127 ---- ---- Accu For EM test only; Write accu on port B Test = 1 |
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