LSI Logic Confidential
SIO Register Descriptions
15-47
Copyright © 2001, 2002 by LSI Logic Corporation. All rights reserved.
FLSTS
FIFO Flush Status
19
1 = Flushing of a particular DMA channel is complete.
Software must reset FLSTS by writing 0.
FLVLB
FIFO B Byte Count
[18:10]
This field shows the number of bytes currently held in
FIFO B.
FLVLA
FIFO A Byte Count
[9:1]
This field shows the number of bytes currently held in
FIFO A.
CHST
DMA Channel Status
0
1 = The DMA transfer operation has finished. CHST can
be cleared by writing 1 to it.
IDC DMA Receive Address Pointer 1 Register (IDC_RX_ADDR_PTR1_ADDR)
Offset = 0xBE00E8
Read/Write
Default = 0x0000 0000
ADDR_PTR1 Address Pointer 1
[27:0]
In double-buffer mode, this register indicates the Base
Address for the next SDRAM buffer about to be trans-
ferred.
Note:
The maximum size for each SDRAM buffer transfer is 511
bytes. Therefore, the difference between ADDR_PTR2 and
ADDR_PTR1 should not exceed 511.
15
10
9
1
0
FLVLB
FLVLA
CHST
31
28
27
16
Reserved
ADDR_PTR1
15
0
ADDR_PTR1
Содержание DMN-8600
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