FDC37B77X SMSC Corporation, FDC37B77X Datasheet - Page 144
FDC37B77X
Manufacturer Part Number
FDC37B77X
Description
ENHANCED SUPER I/O CONTROLLER WITH WAKE UP FEATURES
Manufacturer
SMSC Corporation
Datasheet
1.FDC37B77X.pdf
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Note 3: This chip uses ISA address bits [A11:A0] to decode the base address of each of its logical
Note:
Interrupt
Request Level
Select 0
Default = 0x00
on Vcc POR or
Reset_Drv
LOGICAL
NUMBER
DEVICE
0x06
0x07
0x09
NAME
devices.
An Interrupt is activated by setting the Interrupt Request Level Select 0 register to a non-zero
value AND :
LOGICAL
Reserved
Reserved
DEVICE
For the FDC logical device by setting DMAEN, bit D3 of the Digital Output Register.
KYBD
Table 56 - I/O Base Address Configuration Register Description
Table 57 - Interrupt Select Configuration Register Description
0x70 (R/W)
REG INDEX
REGISTER
INDEX
n/a
Bits[3:0] selects which interrupt level is used for
Interrupt 0.
Note: All interrupts are edge high (except ECP/EPP)
Note: nSMI is active low
Fixed Base Address: 60,64
0x00= no interrupt selected
0x01= IRQ1
0x02= IRQ2/nSMI
0x03= IRQ3
0x04= IRQ4
0x05= IRQ5
0x06= IRQ6
0x07= IRQ7
0x08= IRQ8
0x09= IRQ9
0x0A= IRQ10
0x0B= IRQ11
0x0C= IRQ12
0x0D= IRQ13
0x0E= IRQ14
0x0F= IRQ15
Not Relocatable
BASE I/O
144
(NOTE3)
RANGE
DEFINITION
+3 : CIrCC SCE Registers
+4 : CIrCC SCE Registers
+5 : CIrCC SCE Registers
+6 : CIrCC SCE Registers
+7 : CIrCC SCE Registers
+0 : Data Register
+4 : Command/Status Reg.
BASE OFFSETS
FIXED
STATE
C
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