w83977atf Winbond Electronics Corp America, w83977atf Datasheet - Page 143

• Manufacturer Part Number: w83977atf
• Description: Winbond I/o
• Manufacturer: Winbond Electronics Corp America

11.7 Logical Device 6 (IR)
CR30 (Default
CR60, CR 61 (Default
CR70 (Default
CR74 (Default 0x04)
CR75 (Default 0x04)
.
Bit 1: = 0 Gate20 software control.
Bit 0: = 0 KBRST software control.
Bit 7 - 1: Reserved.
Bit 0:
These two registers select IR I/O base address [0x100:0xFF8] on 8 byte boundary.
Bit 7 - 4: Reserved.
Bit [3:0]: These bits select IRQ resource for IR
Bit 7-3 : Reserved.
Bit 2-0 : These bits select DRQ resource for RX of UART C.
Bit 7-3 : Reserved.
Bit 2-0 : These bits select DRQ resource for TX of UART C.
= 1 Gate20 hardware speed up.
= 1 KBRST hardware speed up.
= 1 Activates the logical device.
= 0 Logical device is inactive.
= 0x00 DMA0
= 0x01 DMA1
= 0x02 DMA2
= 0x03 DMA3
= 0x04-0x07 No DMA active
= 0x00 DMA0
= 0x01 DMA1
= 0x02 DMA2
= 0x03 DMA3
= 0x04-0x07 No DMA active
0x00)
0x00)
0x00, 0x00)
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Publication Release Date:April 1998
W83977ATF
PRELIMINARY
Revision 0.52