Changes between Version 22 and Version 23 of Component/Vci Block Device


Ignore:
Timestamp:
Jan 16, 2014, 10:46:34 PM (10 years ago)
Author:
alain
Comment:

--

Legend:

Unmodified
Added
Removed
Modified

  • Component/Vci Block Device

    v22 v23  
    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     0. `BLOCK_DEVICE_NOOP` : No operation
    36     1. `BLOCK_DEVICE_READ` : Transfer from block device to memory
    37     2. `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     0. `BLOCK_DEVICE_IDLE`
    42     1. `BLOCK_DEVICE_BUSY`
    43     2. `BLOCK_DEVICE_READ_SUCCESS`
    44     3. `BLOCK_DEVICE_WRITE_SUCCESS`
    45     4. `BLOCK_DEVICE_READ_ERROR`
    46     5. `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)