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ADE3000SX 数据表(PDF) 36 Page - STMicroelectronics |
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ADE3000SX 数据表(HTML) 36 Page - STMicroelectronics |
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36 / 88 page  Sync Measurement Block ADE3XXX 36/88 SMEAS_SKEW_CTRL 0x011D [7:3] 0x0 Reserved R/W [2] 0x0 1 = delay vsync a number of XCLKs specified in SMEAS_DELAY_VSYNC [1] 0x0 Reserved R/W [0] 0x0 Write a rising edge to start the hv-skew measurement. SMEAS_SKEW_THRES 0x011E R [7:0] 0x5 Test skew limit in XCLKs. If the skew is less than this test limit, the SMEASE_SKEW_STATUS register will report an error condition. SMEAS_DELAY_VSYNC should be reprogrammed until the skew is large enough to prevent vcount ambiguity. SMEAS_DELAY_VSYNC 0x011F R/W [7:0] 0x3 Number of XCLKs to delay vsync. SMEAS_REF_XK_PER_H_L 0x0120 R/W [7:0] 0x0 Reference value for XCLKs per horizontal event actual value = programmed value + 1 SMEAS_REF_XK_PER_H_M 0x0121 R/W [7:0] 0x0 SMEAS_REF_XK_PER_H_H 0x0122 R/W [7:0] 0x0 SMEAS_REF_XK_PER_V_L 0x0123 R/W [7:0] 0x0 Reference value for XCLKs per vertical event actual value = programmed value + 2 SMEAS_REF_XK_PER_V_M 0x0124 R/W [7:0] 0x0 SMEAS_REF_XK_PER_V_H 0x0125 R/W [7:0] 0x0 SMEAS_REF_H_PER_V_L 0x0126 R/W [7:0] 0x0 Reference value for horizontal events per vertical event SMEAS_REF_H_PER_V_H 0x0127 R/W [7:0] 0x0 SMEAS_REF_XK_V_PER_HI_L 0x0128 R/W [7:0] 0x0 Reference value for vertical pulse width measurement result in XCLKs. actual value = programmed value + 1 SMEAS_REF_XK_V_PER_HI_M 0x0129 R/W [7:0] 0x0 SMEAS_REF_XK_V_PER_HI_H 0x012A R/W [7:0] 0x0 SMEAS_REF_POLARITY 0x012B [7:2] 0x0 Reserved R/W [1] 0x0 Reference value for Hsync polarity. 0: active low 1: active high R/W [0] 0x0 Reference value for Vsync polarity. 0: active low 1: active high SMEAS_XK_HTOL_EXP 0x012C R/W [7:4] 0x0 Reserved [3:0] 0x0 Horizontal tolerance; +/- 2n XCLKs SMEAS_XK_VTOL_EXP 0x012D [7:4] 0x0 Reserved R/W [3:0] 0x0 Vertical tolerance; +/- 2n XCLKs SMEAS_HSYNC_VTOL 0x012E [7:4] 0x0 Reserved R/W [3:0] 0x0 Horizontal per vertical tolerance, +/- 2n SMEAS_FILTR_HS_WIDTH 0x012F R/W [7:0] 0x1 Refer to register 0x0111 SMEAS_ACT_POLLING 0x013F [7:1] 0x0 Reserved R [0] 0x0 Toggle on activity status update in Free- running mode. No function in one-shot mode. Table 13: Sync Measurement Registers (Sheet 5 of 8) Register Name Addr Mode Bits Default Description |
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