FDC37M81x SMSC Corporation, FDC37M81x Datasheet - Page 142
FDC37M81x
Manufacturer Part Number
FDC37M81x
Description
PC98/99 Compliant Enhanced Super I/O Controller
Manufacturer
SMSC Corporation
Datasheet
1.FDC37M81X.pdf
(198 pages)
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Note 1: To allow the selection of the configuration address to a user defined location, these Configuration
Address Bytes are used. There is no restriction on the address chosen, except that A0 is 0, that is, the
address must be on an even byte boundary. As soon as both bytes are changed, the configuration space
is moved to the specified location with no delay (Note: Write byte 0, then byte 1; writing CR27 changes the
base address).
The configuration address is only reset to its default address upon a Hard Reset or Vcc POR.
Note: The default configuration address is either 3F0 or 370, as specified by the SYSOPT pin.
TEST 4
Default = 0x00, on
VCC POR and VTR
POR
TEST 5
Default = 0x00, on
VCC POR and
VTR POR
TEST 1
Default = 0x00, on
VCC POR and VTR
POR
TEST 2
Default = 0x00, on
VCC POR and VTR
POR
TEST 3
Default = 0x00, on
VCC POR and VTR
POR
REGISTER
0x2C R/W
ADDRESS
0x2B R/W
0x2D R/W
0x2E R/W
0x2F R/W
Table 53 - Chip Level Registers
write to this register, may produce undesired results.
should not write to this bit, may produce undesired
results.
Bit[6] 8042 Reset:
1 = Put the 8042 into reset
0 = Take the 8042 out of reset
Bits[5:0] Test Mode: Reserved for SMSC. Users
should not write to this bit, may produce undesired
results.
write to this register, may produce undesired results.
write to this register, may produce undesired results.
write to this register, may produce undesired results.
Test Modes: Reserved for SMSC. Users should not
Bit[7] Test Mode: Reserved for SMSC. Users
Test Modes: Reserved for SMSC. Users should not
Test Modes: Reserved for SMSC. Users should not
Test Modes: Reserved for SMSC. Users should not
142
DESCRIPTION
STATE
C
C
C
C
C
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