CY82C693UB Cypress Semiconductor Corporation., CY82C693UB Datasheet - Page 78

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CY82C693UB

Manufacturer Part Number
CY82C693UB
Description
Hypercache Tm / Stand-alone Pci Peripheral Controller With Usb
Manufacturer
Cypress Semiconductor Corporation.
Datasheet

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DMA Register 15: DMAC1 Request Mask Register Control (Read/Write) - I/O Address=00FH
DMA Request Mask Register Read and Write All Bits Format (This register is cleared on CPURST.)
DMA Register 16: DMAC2 Channel 0 (Channel 4) Current Address Register (Read/Write) - I/O Address=0C0H
DMA Register 17: DMAC2 Channel 0 (Channel 4) Current Word Count Register (Read/Write) - I/O Address=0C2H
DMA Register 18: DMAC2 Channel 1 (Channel 5) Current Address Register (Read/Write) - I/O Address=0C4H
I/O Read I/O Write Flip-Flop State Function
Bit
7:4
3
2
1
0
I/O Read I/O Write Flip-Flop State Function
I/O Read I/O Write Flip-Flop State Function
I/O Read I/O Write Flip-Flop State Function
0
1
0
0
1
1
0
0
1
1
0
0
1
1
1
0
1
1
0
0
1
1
0
0
1
1
0
0
Function
Reserved
DMA Channel 3 Request Mask:
0:
1:
DMA Channel 2 Request Mask:
0:
1:
DMA Channel 1 Request Mask:
0:
1:
DMA Channel 0 Request Mask:
0:
1:
X
X
Channel 3 Not Masked
Channel 3 Masked
Channel 2 Not Masked
Channel 2 Masked
Channel 1 Not Masked
Channel 1 Masked
Channel 0 Not Masked
Channel 0 Masked
0
1
0
1
0
1
0
1
0
1
0
1
Read All bits of DMA Request Mask Register
Write All bits of DMA Request Mask Register
Read Low Byte of Current Address Register
Read High Byte of Current Address Register
Write Low Byte of Base Address Register and Current Address Register
Write High Byte of Base Address Register and Current Address Register
Read Low Byte of Current Word Count Register
Read High Byte of Current Word Count Register
Write Low Byte of Base Word Count Register and Current Word Count Register
Write High Byte of Base Word Count Register and Current Word Count Register
Read Low Byte of Current Address Register
Read High Byte of Current Address Register
Write Low Byte of Base Address Register and Current Address Register
Write High Byte of Base Address Register and Current Address Register
PRELIMINARY
78
CY82C693UB
Default
0000
0
0
0
0

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