NXP Semiconductors LPC43 Series User Manual

Contents

NXP Semiconductors LPC43 Series User Manual Manual pdf 416 page image

UM10503 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved.User manual Rev. 1.3 — 6 July 2012 416 of 1269NXP Semiconductors UM10503Chapter 20: LPC43xx SD/MMC interface20.6 Register descriptionSD_VOLT[2:0] O SD/MMC bus voltage select output 2:0. On the LPC43xx,these pins only function as GPIO pins. The SD/MMCcontroller voltage cannot be changed.SD_RST O SD/MMC reset signal for MMC4.4 card.SD_POW O SD/SDIO/MMC slot power enableTable 295. SDIO pin descriptionPin function Direction DescriptionTable 296. Register overview: SDMMC (base address: 0x4000 4000)Name Access AddressoffsetDescription Reset value ReferenceCTRL R/W 0x000 Control Register 0 Table 297PWREN R/W 0x004 Power Enable Register 0 Table 298CLKDIV R/W 0x008 Clock Divider Register 0 Table 299CLKSRC R/W 0x00C SD Clock Source Register 0 Table 300CLKENA R/W 0x010 Clock Enable Register 0 Table 301TMOUT R/W 0x014 Time-out Register Table 302CTYPE R/W 0x018 Card Type Register 0 Table 303BLKSIZ R/W 0x01C Block Size Register 0x200 Table 304BYTCNT R/W 0x020 Byte Count Register 0x200 Table 305INTMASK R/W 0x024 Interrupt Mask Register Table 306CMDARG R/W 0x028 Command Argument Register 0x00000000 Table 307CMD R/W 0x02C Command Register 0x00000000 Table 308RESP0 R 0x030 Response Register 0 0x00000000 Table 309RESP1 R 0x034 Response Register 1 0x00000000 Table 310RESP2 R 0x038 Response Register 2 0 Table 311RESP3 R 0x03C Response Register 3 0 Table 312MINTSTS R 0x040 Masked Interrupt Status Register 0 Table 313RINTSTS R/W 0x044 Raw Interrupt Status Register 0 Table 314STATUS R 0x048 Status Register Table 315FIFOTH R/W 0x04C FIFO Threshold Watermark Register 0x0F80 0000 Table 316CDETECT R 0x050 Card Detect Register Table 317WRTPRT R 0x054 Write Protect Register Table 318- - 0x058 Reserved - -TCBCNT R 0x05C Transferred CIU Card Byte Count Register 0x00000000 Table 319TBBCNT R 0x060 Transferred Host to BIU-FIFO Byte CountRegister0 Table 320DEBNCE R/W 0x064 Debounce Count Register Table 321- - 0x068 Reserved - -- - 0x06C Reserved - -- - 0x070 Reserved - -- - 0x074 Reserved - -