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HD64F2149YV 데이터시트(PDF) 638 Page - Renesas Technology Corp |
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HD64F2149YV 데이터시트(HTML) 638 Page - Renesas Technology Corp |
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638 / 1075 page ![]() Section 18B Host Interface LPC Interface (LPC) Rev. 3.00 Jan 18, 2006 page 610 of 1044 REJ09B0280-0300 18B.2.2 Host Interface Control Registers 0 and 1 (HICR0, HICR1) • HICR0 Bit 7 6 543 210 LPC3E LPC2E LPC1E FGA20E SDWNE PMEE LSMIE LSCIE Initial value 0 0 000 000 Slave Read/Write R/W R/W R/W R/W R/W R/W R/W R/W Host Read/Write —— ——— ——— • HICR1 Bit 7 6 543 210 LPCBSY CLKREQ IRQBSY LRSTB SDWNB PMEB LSMIB LSCIB Initial value 0 0 000 000 Slave Read/Write R R R R/W R/W R/W R/W R/W Host Read/Write —— ——— ——— HICR0 and HICR1 contain control bits that enable or disable host interface functions, control bits that determine pin output and the internal state of the host interface, and status flags that monitor the internal state of the host interface. HICR0 and HICR1 are initialized to H'00 by a reset and in hardware standby mode. HICR0 Bits 7 to 5—LPC Enable 3 to 1 (LPC3E, LPC2E, LPC1E): These bits enable or disable the host interface function in single-chip mode. When the host interface is enabled (at least one of the three bits is set to 1), processing for data transfer between the slave processor and the host processor is performed using pins LAD3 to LAD0, LFRAME, LRESET, LCLK, SERIRQ, CLKRUN, and LPCPD. HICR0 Bit 7 LPC3E Description 0 LPC channel 3 operation is disabled (Initial value) No address (LADR3) matches for IDR3, ODR3, STR3, or TWR0 to TWR15 1 LPC channel 3 operation is enabled |
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