SMSC LPC47B27x
- 4 -
Rev. 08-10-04
DATASHEET
TABLE OF CONTENTS
FEATURES
..................................................................................................................................................................1
GENERAL DESCRIPTION
.......................................................................................................................................7
PIN CONFIGURATION.............................................................................................................................................8
DESCRIPTION OF PIN FUNCTIONS.....................................................................................................................9
B
UFFER
T
YPE
D
ESCRIPTIONS
.................................................................................................................................13
P
INS
T
HAT
R
EQUIRE
E
XTERNAL
P
ULLUP
R
ESISTORS
............................................................................................13
BLOCK DIAGRAM
...................................................................................................................................................14
REFERENCE DOCUMENTS..................................................................................................................................14
3 VOLT OPERATION / 5 VOLT TOLERANCE
...................................................................................................14
POWER FUNCTIONALITY...................................................................................................................................15
VCC
P
OWER
............................................................................................................................................................15
VTR
S
UPPORT
.........................................................................................................................................................15
I
NTERNAL
PWRGOOD
...........................................................................................................................................15
32.768
K
H
Z
T
RICKLE
C
LOCK
I
NPUT
........................................................................................................................15
I
NDICATION OF
32
K
H
Z
C
LOCK
.................................................................................................................................16
T
RICKLE
P
OWER
F
UNCTIONALITY
...........................................................................................................................16
VREF
P
IN
................................................................................................................................................................17
M
AXIMUM
C
URRENT
V
ALUES
..................................................................................................................................17
P
OWER
M
ANAGEMENT
E
VENTS
(PME/SCI)
...........................................................................................................18
FUNCTIONAL DESCRIPTION
...............................................................................................................................19
SUPER
I/O
REGISTERS
......................................................................................................................................19
HOST
PROCESSOR
INTERFACE
(LPC)
.........................................................................................................19
LPC
INTERFACE
..................................................................................................................................................19
FLOPPY DISK CONTROLLER
..............................................................................................................................23
FDC
INTERNAL
REGISTERS
.............................................................................................................................23
COMMAND SET/DESCRIPTIONS........................................................................................................................37
INSTRUCTION SET
.................................................................................................................................................39
FDC SWAP BIT ........................................................................................................................................................55
SERIAL PORT (UART)...........................................................................................................................................56
INFRARED INTERFACE........................................................................................................................................69
IR
T
RANSMIT
P
INS
...................................................................................................................................................69
MPU-401 MIDI UART..............................................................................................................................................70
O
VERVIEW
................................................................................................................................................................70
H
OST
I
NTERFACE
......................................................................................................................................................70
MPU-401
C
OMMAND
C
ONTROLLER
.........................................................................................................................73
MIDI
UART.............................................................................................................................................................73
MPU-401
C
ONFIGURATION
R
EGISTERS
....................................................................................................................74