Changes between Version 23 and Version 24 of Component/Vci Block Device


Ignore:
Timestamp:
Jan 16, 2014, 10:48:04 PM (10 years ago)
Author:
alain
Comment:

--

Legend:

Unmodified
Added
Removed
Modified
  • Component/Vci Block Device

    v23 v24  
    3333 * '''BLOCK_DEVICE_OP''' (write only)
    3434Type of operation, writing here initiates the operation.This register goes back to BLOCK_DEVICE_NOOP when operation is finished. The following operations codes are defined:
    35     * `BLOCK_DEVICE_NOOP` : No operation
    36     * `BLOCK_DEVICE_READ` : Transfer from block device to memory
    37     * `BLOCK_DEVICE_WRITE` : Transfer from memory to block device
     35    `BLOCK_DEVICE_NOOP` : No operation
     36    `BLOCK_DEVICE_READ` : Transfer from block device to memory
     37    `BLOCK_DEVICE_WRITE` : Transfer from memory to block device
    3838
    3939 * '''BLOCK_DEVICE_STATUS''' (read only)
    4040State of the transfer. Reading this register while not busy resets its value to IDLE, and acknowledge the IRQ. Value may be one of :
    41     * `BLOCK_DEVICE_IDLE`
    42     * `BLOCK_DEVICE_BUSY`
    43     * `BLOCK_DEVICE_READ_SUCCESS`
    44     * `BLOCK_DEVICE_WRITE_SUCCESS`
    45     * `BLOCK_DEVICE_READ_ERROR`
    46     * `BLOCK_DEVICE_WRITE_ERROR`
     41    `BLOCK_DEVICE_IDLE`
     42    `BLOCK_DEVICE_BUSY`
     43    `BLOCK_DEVICE_READ_SUCCESS`
     44    `BLOCK_DEVICE_WRITE_SUCCESS`
     45    `BLOCK_DEVICE_READ_ERROR`
     46    `BLOCK_DEVICE_WRITE_ERROR`
    4747
    4848 * '''BLOCK_DEVICE_IRQ_ENABLE''' (read/write)