FDC37C935-QS Standard Microsystems (SMSC), FDC37C935-QS Datasheet - Page 160

• Manufacturer Part Number: FDC37C935-QS
• Manufacturer: Standard Microsystems (SMSC)

Specifications of FDC37C935-QS

• Lead Free Status / RoHS Status: Supplier Unconfirmed

GP16
Default = 0x01
GP17
Default = 0x01
GP20
Default = 0x01
NAME
Table 74 - Auxilliary I/O, Logical Device 8 [Logical Device Number = 0x08]
REG INDEX
0xE6
0xE7
0xE8
General Purpose I/0 bit 1.6
Bit[0] In/Out : =1 Input, =0 Output
Bit[1] Polarity : =1 Invert, =0 No Invert
Bit[2] Int En
=1 Enable Combined IRQ
=0 Disable Combined IRQ
Bit[4:3] Alt Func: Joystick (Active Low)
=01
=10
=00
Bits[7:5] Reserved = 000
General Purpose I/0 bit 1.7
Bit[0] In/Out : =1 Input, =0 Output
Bit[1] Polarity : =1 Invert, =0 No Invert
Bit[2] Int En
=1 Enable Combined IRQ
=0 Disable Combined IRQ
Bit[3] Alt Func : Joystick Write Strobe (Active Low)
=1 Select alternate function
=0 Select basic I/O function
Bits[7:4] Reserved = 0000
General Purpose I/0 bit 2.0
Bit[0] In/Out :
Bit[1] Polarity :
Bit[2] Int En : =1 Enable Combined IRQ
Bit[3] Alt Func: IDE2 buffer enable (Active Low)
Bit[4] Alt func: 8042 P20, Typically used to generate
a "Keyboard Reset" used by systems in order to
switch from "protected mode" back to "real mode"
Bits[7:5] Reserved = 000
Note:
Joystick RD Stb function
Joystick CS function
Select basic I/O function
=0 Disable Combined IRQ
=1 Select alternate function
=0 Select basic I/O function
=1 Select alternate function
=0 Select basic I/O function
Bit[3] and Bit[4] should not both be set at the
same time
160
=1 Input, =0 Output
=1 Invert, =0 No Invert
DEFINITION
STATE
C
C
C