LSI Logic Confidential
15-78
Serial I/O Port
Copyright © 2001, 2002 by LSI Logic Corporation. All rights reserved.
SPI DMA Receive Address Pointer1 Register (SPI_RX_ADDR_PTR1_ADDR)
Offset = 0xBE0068
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.
SPI DMA Receive Address Pointer2 Register (SPI_RX_ADDR_PTR2_ADDR)
Offset = 0xBE006C
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.
31
28
27
16
RSVD
ADDR_PTR1
15
0
ADDR_PTR1
31
28
27
16
RSVD
ADDR_PTR2
15
0
ADDR_PTR2
Содержание DMN-8600
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