Block Diagram
SPEAKER
LED1*
WDT*
WD
T
LEDs
CLK32
CLOCKI
CLOCK
GEN
Speaker
SER_IRQ
PCI_CLK
LAD[3:0]
LFrame#
LDRQ#
PCI_RESET#
IO_PME_S3*
IO_PME_S5*
IO_SMI*
GP1[0:4]*,
GP21*,GP22*
GP27*, GP32*,GP33*
GP36*, GP37* ,
GP4[0,2,3]*
GP5[0:1]*, GP6[0:1]*
nMTR0, nTRK0, InNDEX
nW GATE, nHDSEL
DRVDEN0*,nW RTPRT
nDIR, nSTEP
nDSKCHG, nDS0,
nRDATA,nW DATA
SERIAL
IRQ
Internal Bus
(Data, Address, and Control lines)
LPC
Bus Interface
Multi-Mode
Parallel Port
with
ChiProtect
TM
/FDC
MUX
(see
LPC47B27x)
High-Speed
16550A
UART
PORT 1
LED2*
PD[7,0]
BUSY, SLCT, PE,
nERROR, nACK
nSTROBE, nINIT,
nSLCTIN, nALF
TXD1*, RXD1
nCTS1, nRTS1*
nDSR1, nDTR1
nDCD1, nRI1
TXD2 (IRTX)*,
RXD2 (IRRX)*
CTS2*, RTS2 *
DSR2*, DTR2*
DCD2*, RI2*
Power Mgmt
High-Speed
16550A
UART
PORT 2
32 byte
Security
Key
Register
General
Purpose
I/O
SMSC
Proprietary
82077
Compatible
Floppydisk
Controller with
Digital Data
Separator &
W rite Precom-
pensation
PCI Reset
Outputs
Keyboard/Mouse
8042
controller
nIDE_RSTDRV*
nPCIRST_OUT[1:4]*
MCLK*, MDAT*
A20M*
nKBDRST*
KCLK*,KDAT*
nFPRST, PB_IN#
PW RGD_PS
SLP_S3#, SLP_S5#
`
PW RGD_CPU ,
PW RGD_3V
n3VSB_GAT E
n3V_GATE
nRSMRST
PCI_RESET#
14.318Mhz
HWN_INT
SLP_S3#
SLP_S5#
96 Mhz
VCC
Vbat
VTR
SDA1
SCLK1
SDA2
SCLK2
SMbus
Isola-
tion
Switch
S
M
b
u
s
SDA
SCLK
Power Control
and Recovery
Hardware
Monitor
Intruder
Detection
nHWM_INT
VID0
VID1
VID2
VID3
VID4
VID5 / FANTACH3
+5V_IN
+5VTR_IN
VCCP_IN
+12V_IN
Remote1-
Remote1+
Remote2-
Remote2+
PWM1/xTest Out
PWM2
PWM3/ ADDR_EN#
FANTACH1
FANTACH2
FANTACH4/ADDR_SEL
PWMA*, PWMB*
FANTACHA*
FANTACHB*
nINTRD_IN
Note 1:
This diagram does not show power and
ground connections.
Note 2:
Signal names followed by an asterisk (*) are
located on multifunction pins. This diagram is
designed to show the various functions available on
the chip and should not be used as a pin layout.
Figure 1 DME1737 Block Diagram
Rev. 05-21-04
PRODUCT PREVIEW
4
SMSC DME1737
SMSC [ SMSC CORPORATION ]
