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WM8233 Datasheet(PDF) 40 Page - Cirrus Logic |
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WM8233 Datasheet(HTML) 40 Page - Cirrus Logic |
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40 / 146 page ![]() WM8233 40 Rev 4.7 TG MASK TIMING The WM8233 has a TG clock mask function. M1, M2 and M3 pulses specify the mask period; T1 and T2 pulses are used for changing the signal polarity during the mask period. C_CK1 and C_CK2 are applied to the M pulse only; they cannot be applied to the T pulse. C_CK3 and C_CK4 are applied to M1 and T1; C_CK5 and C_CK6 are applied to M2 and T2. The mask timing is synchronized with TGCKO rise edge. N-1 N CKGO3 (Internal) VSMP TGCK pixcnt TGCKO N+1 M-2 N+2 M+1 C_CK3 M+2 M+3 M-1 N+3 k M2@TGCK M2@TGCK O rise@count N High@TP2 CKGO3 + M2 T2@TGCK T2@TGCK O Low@TP1 P1 TP1 P2 TP2 M M-1 fall@count M-1 TP1 TP2 Figure 22 TG Mask Timing TG CLOCK APPLIED “M” PULSE APPLIED “T” PULSE C_CK1 C_CK2 M3 none C_CK3 C_CK4 M1 T1 C_CK5 C_CK6 M2 T2 REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION R195 (C3h) 7:0 M1_RISE[7:0] 0000_0000 M1 pulse rise count (mask start) R196 (C4h) 6:0 M1_RISE[6:0] 000_0000 M1 pulse rise count (mask start) R197 (C5h) 7:0 M1_FALL[7:0] 0000_0000 M1 pulse fall count (mask end) R198 (C6h) 6:0 M1_FALL[6:0] 000_0000 M1 pulse fall count (mask end) R199 (C7h) 7:0 M2_RISE[7:0] 0000_0000 M2 pulse rise count (mask start) R200 (C8h) 6:0 M2_RISE[6:0] 000_0000 M2 pulse rise count (mask start) R201 (C9h) 7:0 M2_FALL[7:0] 0000_0000 M2 pulse fall count (mask end) R202 (CAh) 6:0 M2_FALL[6:0] 000_0000 M2 pulse fall count (mask end) R203 (CBh) 7:0 M3_RISE[7:0] 0000_0000 M3 pulse rise count (mask start) R204 (CCh) 6:0 M3_RISE[6:0] 000_0000 M3 pulse rise count (mask start) R205 (CDh) 7:0 M3_FALL[7:0] 0000_0000 M3 pulse fall count (mask end) R206 (CEh) 6:0 M3_FALL[6:0] 000_0000 M3 pulse fall count (mask end) R271 (010Fh) – R278 (116h) 7:0 POL*_T1 1111_1111 polarity of T1 pulse at TP* 7:0 POL*_T2 1111_1111 polarity of T2 pulse at TP* |
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