FDC37C935-QS Standard Microsystems (SMSC), FDC37C935-QS Datasheet - Page 158
FDC37C935-QS
Manufacturer Part Number
FDC37C935-QS
Description
Manufacturer
Standard Microsystems (SMSC)
Datasheet
1.FDC37C935-QS.pdf
(203 pages)
Specifications of FDC37C935-QS
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all accesses to 0xF0 through 0xFF return zero.
GP10
Default = 0x01
GP11
Default = 0x01
GP12
Default = 0x01
NAME
Table 74 - Auxilliary I/O, Logical Device 8 [Logical Device Number = 0x08]
REG INDEX
0xE0
0xE1
0xE2
General Purpose I/0 bit 1.0
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
(If configured as input, the input signal is steered to
the selected IRQ)
=1 Select alternate function
=0 Select basic I/O function
Bits[7:4] Alt Fuct IRQ mapping
1111 = IRQ15
.........
0011 = IRQ3
0010 = Invalid
0001 = IRQ1
0000 = Disable
General Purpose I/0 bit 1.1
Same as for GP10
General Purpose I/0 bit 1.2
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 : WDT output or IRRX input.
=1 Select alternate function
=0 Select basic I/O function
(IRRX - if bit-6 of the IR Options Register is set)
Bits[7:4] : Reserved = 0000
158
DEFINITION
STATE
C
C
C
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