LSI Logic Confidential
15-44
Serial I/O Port
Copyright © 2001, 2002 by LSI Logic Corporation. All rights reserved.
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.
IDC DMA Transmit Address Pointer 2 Register (IDC_TX_ADDR_PTR2_ADDR)
Offset = 0xBE00CC
Read/Write
Default = 0x0000 0000
ADDR_PTR2 Address Pointer 2
[27:0]
In double-buffer mode, this register indicates the End
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.
IDC DMA Transmit Address Pointer 3 Register (IDC_TX_ADDR_PTR3_ADDR)
Offset = 0xBE00D0
Read/Write
Default = 0x0000 0000
ADDR_PTR3 Address Pointer 3
[27:0]
This register is updated by hardware during a DMA oper-
ation.
31
28
27
16
Reserved
ADDR_PTR2
15
0
ADDR_PTR2
31
28
27
16
Reserved
ADDR_PTR3
15
0
ADDR_PTR3
Содержание DMN-8600
Страница 14: ...LSI Logic Confidential xiv Contents Copyright 2001 2002 by LSI Logic Corporation All rights reserved ...
Страница 18: ...LSI Logic Confidential xviii Copyright 2001 2002 by LSI Logic Corporation All rights reserved ...
Страница 64: ...LSI Logic Confidential 7 6 Memory Mapping Copyright 2001 2002 by LSI Logic Corporation All rights reserved ...