w83977ag Winbond Electronics Corp America, w83977ag Datasheet - Page 148
w83977ag
Manufacturer Part Number
w83977ag
Description
W83977f With 3rd Uart For Ir, Pb-free
Manufacturer
Winbond Electronics Corp America
Datasheet
1.W83977AG.pdf
(182 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
w83977ag-A
Manufacturer:
Nuvoton Technology Corporation of America
Quantity:
10 000
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CR60, CR 61 (Default 0x00, 0x00)
CR70 (Default 0x00)
CR71 (Default 0x02)
CR72 (Default 0x00)
CR73
CRE8 (GP20, Default 0x01)
CRE9 (GP21, Default 0x01)
These two registers select GP2 & Watch Dog I/O base address [0x100:0xFFE] on 2 byte
boundaries. I/O base address + 1 : Watch Dog I/O base address.
Bit 7-4 : Reserved.
Bit 3-0 : These bits select IRQ resource for Common IRQ of GP20~GP25 at Logic Device 9.
Bit 7-2 : Reserved.
Bit 1 : IRQLEV -- > IRQ Level
= 1: High; = 0: Low
Bit 0 : IRQTYPE --> IRQ Type
= 1: Level trigger; 0: Edge trigger
Bit 7-4 : Reserved.
Bit 3-0 : These bits select IRQ resource for Watch Dog.
Bit 7-2 : Reserved.
Bit 1 : IRQLEV -- > IRQ Level
= 1: High; = 0: Low
Bit 0 : IRQTYPE --> IRQ Type
= 1: Level trigger; = 0: Edge trigger
Bit 7-5 : Reserved.
Bit 4-3 : Select Function.
Bit 2 : Int En
Bit 1 : Polarity : 1 : Invert, 0 : No Invert
Bit 0 : In/Out : 1 : Input, 0 : Output
Bit 7-5 : Reserved
Bit 4-3 : Select Function.
W83977F-A/ W83977G-A/ W83977AF-A/ W83977AG-A
= 00 Select basic I/O function
= 01 Reserved
= 10 Select alternate function : Keyboard Reset (connected to KBC P20)
= 11 Reserved
= 1
= 0
= 00 Select Basic I/O function
= 01 Reserved
= 10 Select 2nd alternate function : Keyboard P13 I/O
= 11 Reserved
Enable Common IRQ
Disable Common IRQ
-140
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