SDED5-001G-NAY Datasheet, PDF (45/86 Pages) List of Unclassifed Manufacturers – Embedded Flash Drive (EFD) featuring Embedded TrueFFS Flash Management Software

Rev. 1.3
mDOC H3 Registers
mDOC H3 EFD Featuring Embedded TrueFFS Data Sheet
DMA_EN
1: active low
DMA enable bit:
0: DMARQ# is disabled
1: DMARQ# is enabled
7.3.10 DMA Negation Register
Description: This 16-bit register controls the negation of DMARQ# signal to the host.
Address (hex): 9418 (128KB window) / 1418 (8KB window)
Type:
Read / Write
Bit number ^D15-D10
Read/Write R
Bit name ^RFU
Reset value 0
D9-D0
R/W
DMA_PROG_NEG
4
DMA_PROG_NEG
DMA programmable negation:
0-1023: Number of words in DRQ block before end of data transfer that
DMARQ# signal will be negated.
Note: DMA negation must be smaller than transfer size in words (16bit).
7.3.11 Software Lock Register
Description: This 16-bit register implements the Sticky Lock functionality. After setting it,
protected-partitions can no longer be accessed, until the device is reset.
Address (hex): 9410 (128KB window) / 1410 (8KB window)
Type:
Read / Write
Bit number
Read/Write
Bit name
Reset value
D15-D1
R
RFU
0
D0
R/W
SLOCK
0
SLOCK
Sticky Lock bit.
0: Sticky Lock is not active
1: Sticky Lock is activated
This bit can only be set once by the host until device is reset.
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