FDC37B787-NS SMSC, FDC37B787-NS Datasheet - Page 175

• Manufacturer Part Number: FDC37B787-NS
• Description: IC CTRLR SUPER I/O ENH 128-QFP
• Manufacturer: SMSC

Specifications of FDC37B787-NS

• Controller Type: I/O Controller
• Interface: ISA Host
• Voltage - Supply: 4.5 V ~ 5.5 V
• Current - Supply: 70mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 128-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 638-1006

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.
This change affects SMSC Mode only.
Configuration
Address Byte 0
Default=0xF0
(Sysopt=0)
=0x70
(Sysopt=1)
on Vcc POR or
Reset_Drv
Configuration
Address Byte 1
Default = 0x03
on Vcc POR or
Reset_Drv
Chip Level
Vendor Defined
TEST 4
TEST 5
TEST 1
TEST 2
TEST 3
Default = 0x00,
on Vcc POR or
Reset_Drv
hardware signal.
REGISTER
0x28 -0x2A
ADDRESS
0x2B R/W
0x2C R/W
0x2D R/W
0x2E R/W
0x2F R/W
0x26
0x27
Bit[7:1] Configuration Address Bits [7:1]
Bit[0] = 0
See Note 1 Below
Bit[7:0] Configuration Address Bits [15:8]
See Note 1 Below
Reserved - Writes are ignored, reads return 0.
Test Modes: Reserved for SMSC. Users should not
write to this register, may produce undesired results.
Test Modes: Reserved for SMSC. Users should not
write to this register, may produce undesired results.
Test Modes: Reserved for SMSC. Users should not
write to this register, may produce undesired results.
Test Modes: Reserved for SMSC. Users should not
write to this register, may produce undesired results.
Test Modes: Reserved for SMSC. Users should not
write to this register, may produce undesired results.
178
DESCRIPTION
STATE
C
C
C
C
C
C
C