fdc37m707 Standard Microsystems Corp., fdc37m707 Datasheet - Page 115
fdc37m707
Manufacturer Part Number
fdc37m707
Description
Fdc37m707 Enhanced Super I/o Controller With Wake-up Features
Manufacturer
Standard Microsystems Corp.
Datasheet
1.FDC37M707.pdf
(194 pages)
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The Watchdog Timer Control, SMI Enable and
SMI Status Registers can be accessed by the
host when the chip is in the normal run mode if
CR03 Bit[7]=1. The host uses GP Index and
Data register to access these registers. The
Power on default GP Index and Data registers
are
configuration mode the GP Index address may
be programmed to reside on addresses 0xE0,
0xE2, 0xE4 or 0xEA. The GP Data address is
automatically set to the Index address + 1. Upon
exiting the configuration mode the new GP Index
and
Data
0xEA
registers
and
REGISTER
GP Index
GP Data
0xEB
are
used
Table 47A - GP Index and Data Register
respectively.
Index address + 1
ADDRESS (R/W)
0xE0, E2, E4, EA
to
GP INDEX REGISTERS
access
In
115
registers WDT_CTRL, SMI Enable and SMI
Status Registers.
To access these registers when in normal (run)
mode, the host should perform an IOW of the
Register Index to the GP Index register (at
0xEX) to select the Register and then read or
write the Data register (at Index+1) to access
the register.
The WDT_CTRL, SMI Enable and SMI Status
registers can also be accessed by the host when
in the configuration state through Logical Device
8.
Access to Watchdog Timer
Control, SMI Enable and
SMI Status Registers (see
Table 47B)
NORMAL (RUN) MODE
0x01-0x0F
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