SN32F280 Series
32-Bit Cortex-M0 Micro-Controller
SONiX TECHNOLOGY CO., LTD
Page 228
Version 1.1
1: Clear ARDYTOIF flag
18.7.11 EBI DMA Control register (EBI_DMACTRL)
Address offset: 0x5C
Note: The speed of SPIn SHALL be greater or equal to the speed of EBI.
Bit
Name
Description
Attribute
Reset
31:4
Reserved
R
0
3:2
BANKSELECT[1:0]
EBI bank n select bits
00b: BANK 0
01b: BANK 1
10b: BANK 2
11b: BANK 3
R/W
0
1
SPISELECT
SPIn select bit (Only 8-bit data length is supported)
0: SPI0
1: SPI1
R/W
0
0
DMAEN
SPIn to EBI DMA enable bit (Only supported when MODEx[1:0]
=0x11)
0: Disable (Set by HW when
DMATCIF becomes 1
)
1: Enable (Set by FW)
R/W
0
18.7.12 EBI DMA Number of Data Transfer register (EBI_DMACNT)
Address offset: 0x64
This register can only be written when the DMA is disabled. Once the DMA is enabled, this register is read-only,
indicating the remaining bytes to be transmitted.
Once the transfer is completed (CURCNT=CNT), HW will trigger DMATC interrupt if DMATCIE = 1.
Bit
Name
Description
Attribute
Reset
31:28
Reserved
R
0
27:0
CNT[27:0]
Number of data bytes (CNT+1) to be transferred.
R/W
0
18.7.13 EBI DMA Number of Half Data Transfer register (EBI_DMAHTCNT)
Address offset: 0x68
This register can only be written when the DMA is disabled. Once the DMA is enabled, this register is read-only,
indicating the remaining bytes to be transmitted.
Once the half transfer is completed (CURCNT=HTCNT), HW will trigger DMATC interrupt if DMAHTIE = 1.
Bit
Name
Description
Attribute
Reset
31:28
Reserved
R
0
27:0
HTCNT[27:0]
Half number of data bytes (HTCNT+1) to be transferred.
R/W
0xFFFFFFF
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