W83627UHG Nuvoton Technology Corporation of America, W83627UHG Datasheet - Page 116

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W83627UHG

Manufacturer Part Number
W83627UHG
Description
IC I/O CONTROLLER 128-QFP
Manufacturer
Nuvoton Technology Corporation of America
Datasheets

Specifications of W83627UHG

Applications
PC's, PDA's
Interface
LPC
Voltage - Supply
3.3V, 5V
Package / Case
128-XFQFN
Mounting Type
Surface Mount
Pin Count
128
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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Status Register 0 (ST0)
Status Register 1 (ST1)
NAME
NAME
BIT
7-6
1-0
BIT
BIT
BIT
5
4
3
2
7
6
IC Interrupt Code.
Bits
7 6
0 0: Normal termination of the command.
0 1: Abnormal termination of the command.
1 0: Invalid command issue.
1 1: Abnormal termination because the ready signal from FDD changed state during
command execution.
SE (Seek End).
1: Seek end.
0: Seek error.
EC (Equipment Check).
1: When a fault signal is received from the FDD or the track.
0: Signal fails to occur after 77 step pulses.
0: No error.
NR (Not Ready).
1: Drive is not ready.
0: Drive is ready.
HD Head Address. (The current head address)
1: Head selected.
0: Head selected.
US 1, US0 Drive Select.
Bits
1 0
0 0: Drive A selected.
0 1: Drive B selected.
1 0: Drive C selected.
1 1: Drive D selected.
EN (End of Track). 1 will be written to this bit if the FDC tries to access a sector beyond
the final sector or a cylinder.
Not Used. This bit is always 0.
IC Interrupt Code
EN
7
7
Not Used
6
6
SE Seek
End
OE
5
5
Equipment
Check
DESCRIPTION
DESCRIPTION
-101-
OR
EC
4
4
Not Used
NR Not
Ready
3
3
Publication Release Date: March 24, 2008
HD Head
Address
ND
2
2
W83627UHG
US1, US0 Drive Select
NW
1
1
Revision 1.44
MAM
0
0

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