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SH7052 Datasheet(PDF) 345 Page - Renesas Technology Corp |
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SH7052 Datasheet(HTML) 345 Page - Renesas Technology Corp |
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345 / 919 page ![]() 319 Free-Running Counter 10AH, AL (TCNT10AH, TCNT10AL): Free-running counter 10AH, AL (comprising TCNT10AH and TCNT10AL) is a 32-bit readable/writable register that counts on an input clock and is cleared by input capture input (TI10) (AGCK). Bit: 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 Initial value: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 R/W: R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Bit: 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Initial value: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 R/W: R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W TCNT10A can only be accessed by a longword read or write. Word reads or writes cannot be used. TCNT10A is initialized to H'00000001 by a power-on reset, and in hardware standby mode and software standby mode. Event Counter 10B (TCNT10B): Event counter 10B (TCNT10B) is an 8-bit readable/writable register that counts on external clock input (TI10) (AGCK). For this operation, TI10 input must be set with bits CKEG1 and CKEG0 in TCR10. TI10 input will be counted even if halting of the count operation is specified by bit STR10 in TSTR1. Bit: 7 6 5 4 3 2 1 0 Initial value: 0 0 0 0 0 0 0 0 R/W: R/W R/W R/W R/W R/W R/W R/W R/W TCNT10B can only be accessed by a byte read or write. TCNT10B is initialized to H'00 by a power-on reset, and in hardware standby mode and software standby mode. |
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