Product specifications

VT1211 LPC SuperIO and Hardware Monitor
Revision 1.0 January 8, 2002 -38- Register Descriptions – Wake Up Control I/O
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Wake-Up Control I/0 Registers
These registers are normally accessed at I/O port addresses
starting at EB00h (see LDN A Rx61-60 for the Wake Up
Control I/O Port Base setting).
Offset 00 –Wake-Up Status ........................................... RWC
7 Module IRQ Status
0 Event not active .....................................default
1 Event active
This bit is only set by hardware and can only be reset
by writing a 1 to this bit position.
6 Software Event
0 Event not active .....................................default
1 Event active
This bit is only set and reset by writing a 1 to toggle
of this bit position.
5 Module GPIO
This sticky bit shows the status of the module GPIO
event detection.
0 Event not detected..................................default
1 Event detected
This bit is only set by hardware and can only be reset
by writing a 1 to this bit position.
4-3 Reserved .......................................always reads 0
2 Ring Indicator 2#
0 Event not detected..................................default
1 Event detected
This bit is only set by hardware and can only be reset
by writing a 1 to this bit position.
1 Ring Indicator 1#
0 Event not detected..................................default
1 Event detected
This bit is only set by hardware and can only be reset
by writing a 1 to this bit position.
0 Reserved ....................................... always reads 0
Offset 01 – Wake-Up Status 1 ..........................................RW
7-0 GPX [7:0] Event….……...................................RWC
This register shows the status of either GP2X or
GP7X event detection, according to register bit of
Rx1C[7].
0 Event not detected..................................default
1 Event detected
These bits are only set by hardware and can only be
reset by writing a 1 to relative bit position.
Offset 03 – Wake-Up Event Enable 0 ............................. RW
7 Module IRQ Enable
0 Disable................................................... default
1 Enable
6 Software Enable
0 Disable................................................... default
1 Enable
5 Module GPIO Enable
0 Disable................................................... default
1 Enable
4-3 Reserved ...................................... always reads 0
2 RI2# Enable
0 Disable................................................... default
1 Enable
1 RI1# Enable
0 Disable................................................... default
1 Enable
0 Reserved ...................................... always reads 0
Offset 04 – Wake-Up Event Enable 1 ............................. RW
7-0 GPX [7:0] Enable
This register enables event detection on the GPIO
pins of either GP2X or GP7x, according to Wake-up
Configuration Register Rx1C[7].
0 Disable................................................... default
1 Enable
Offset 06 – Wake-Up Configuration (00h)..................... RW
7 Initialization
Logic 1 restores power-up default values to all of
registers. This bit automatically clears itself since the
power on default is zero.
6-5 Reserved ...................................... always reads 0
4 Power LED On/Off Flag
Logic 1 enables LED pin 102 to turn on if Wake-up
Configuration Register Rx1C [2:0] are 0 (Power
LED Control).
3-0 Reserved ...................................... always reads 0