SEVEN_SEG   = $7ff0

UART        = $7ff4
UART_TXB    = UART
UART_RXB    = UART
UART_STATUS = UART + 1

LED         = $7ff6
SW          = LED

MM_CTRL		= $7ff7
MM_DATA		= $7fe0

SD_ARG      = $7ff8
SD_CMD      = $7ffc
SD_DATA     = $7ffd

IRQ_STATUS  = $7fff