Desktop System Controller Hub with Advanced, 8051µC-Based Auto Fan Control
Block Diagram
IDE_RSTDRV#*, PCI_RST_SYS#*
PCI_RST_SLOTS#*, PS_ON#*
PWR_GOOD_3V*, PWRGD_PS, RSMRST#*
14.318 MHz
CLOCK
GEN
Glue Logic
LEDs
SECONDARY_HD#*
PRIMARY_HD#*
SCSI#*
HD_LED#*
LED2*
LED3*
LED1*
SER_IRQ
PCI_CLK
LAD[3:0]
LFRAME#
LDRQ#
PCI_RESET#
LPCPD#
IO_PME#*
IO_SMI#*
GP10*, GP11*, GP15*, GP21*,
GP22*, GP23*, GP25*, GP26*,
GP31*, GP33*, GP35*, GP36*,
GP37*, GP40*, GP41*, GP42*,
GP52*, GP53*, GP55*, GP57*,
GO60*, GP61*, GP75*, GP76*,
GP77*, GP80*, GP81*, GP82,
GP83*, GP84*, GP8051_[12:1]*,
GP8051_[17:14]*
SERIAL
IRQ
Internal Bus
(Data, Address, and Control lines)
Multi-Mode
Parallel Port
with ChiProtect
TM
LPC
Bus Interface
PD[7:0]
BUSY,SLCT,PE
ERROR#, ACK#
STROBE#, INIT#
SLCTIN#
ALF#
Power Mgmt
General
Purpose
I/O
SCH5617C
(128 QFP)
High-Speed
16550A
UART
PORT 1
TXD1*,RXD1*
CTS1#*, RTS1#*
DSR1#*, DTR1#*
DCD1#*, RI1#*
8051
TACH1
TACH2
TACH3
HVSS
Remote1+
Remote1-
Remote2+
Remote2-
HVTR
PWM1
PWM2
PWM3
PROCHOT_IN#
PROCHOT_OUT
ROM
Auto
Fan
Control
Analog
Interface
SMC PROPRIETARY
82077 COMPATIBLE
VERTICAL
FLOPPYDISK
CONTROLLER CORE
WDATA
WCLOCK
DIGITAL DATA
SEPARATOR
WITH WRITE
PRECOM-
PENSATION
High-Speed
16550A
UART
PORT 2
TXD2*,RXD2*
CTS2#*, RTS2#*
DSR2#*, DTR2#*
DCD2#*, RI2#*
SMBus Isolation
Circuits
SCLK*, SDAT*
SCLK_1*, SDAT_1*
Analog
Block
Keyboard/Mouse
8042
controller
RCLOCK
RDATA
KCLK, MCLK
KDAT, MDAT,
KBDRST#, A20M
P12*,P16*,P17*
PECI V
REF
PECI IO
PECI AVAILABLE
PECI REQUEST#
PECI
Interface
MRT0#, MRT1#*, TRK0#,
INDEX#,WRTPRT#,WGATE#,
HDSEL#,DRVDEN0*,
DIR#, STEP#, DSKCHG#,DS0#, DS1#*
RDATA#,
WDATA#
Note 1:
This diagram does not show power and ground
connections.
Note 2:
Functions with "*" are located on multifunctional
pins. This diagram is designed to show the various
functions available on the chip (not pin layout).
Figure 1 SCH5617C Block Diagram
Revision 0.7 (12-09-08)
PRODUCT PREVIEW
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SMSC SCH5617C
SMSC [ SMSC CORPORATION ]
