Cypress EZ-USB FX3 User Manual

EZ-USB FX3 Technical Reference Manual, Document Number: 001-76074 Rev. *F 632
SDMMC_CMD_IDX
0xFC
10.26.5 SDMMC_CMD_IDX
SDMMC Command Index Register
The cmd field specifies the command-index that is to be included in the command sent. When the command is sent, HW send
out start and transmission-bit followed by (SDMMC_CMD_FMT.CMDFRMT + 1 bits), 7-bit CRC, and end bit. The (SDM-
MC_CMD_FMT.CMDFRMT + 1) bits include as many bits as necessary in the following order: command index (6 bits), argu-
ment (starting from bit 31 of SDMMC_CMD_ARG0), SDMMC_CMD_ARG1.
There are two copies of this register corresponding to the two storage ports. The address of each register is calculated as
0xe0020000 + (port * 0x0400).
5:0 CMD 6-bit command index.
SDMMC_CMD_IDX
SDMMC Command Index
0xE0020000
b31 b30 b29 b28 b27 b26 b25 b24
b23 b22 b21 b20 b19 b18 b17 b16
b15 b14 b13 b12 b11 b10 b9 b8
b7 b6 b5 b4 b3 b2 b1 b0
CMD[5:0]
R
R/W
000000
Bit Name Description

Cypress EZ-USB FX3 Specifications

General

Brand	Cypress
Model	EZ-USB FX3
Category	Controller
Language	English