LPC47B272-MS SMSC, LPC47B272-MS Datasheet - Page 146

• Manufacturer Part Number: LPC47B272-MS
• Description: IC CTRLR SUPER I/O LPC 100-QFP
• Manufacturer: SMSC

Specifications of LPC47B272-MS

• Controller Type: I/O Controller
• Interface: LPC
• Voltage - Supply: 3.3V
• Current - Supply: 15mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 638-1019

SMSC LPC47B27x
GP6
Default = 0x00
N/A
WDT_TIME_OUT
Default = 0x00
on Vcc POR or
HARD RESET
WDT_VAL
Default = 0x00
on VCC POR or
HARD RESET
WDT_CFG
Default = 0x00
On VCC POR or
HARD RESET
on VTR POR
NAME
REG OFFSET
(R/W)
(R/W)
(R/W)
(R/W)
(hex)
(R)
50
51
52
53
54
DATASHEET
General Purpose I/0 Data Register 6
Bit[0] GP60
Bit[1] GP61
Bit[7:2] Reserved
Reserved – reads return 0
Watch-dog Timeout
Bit[0] Reserved
Bit[1] Reserved
Bits[6:2] Reserved, = 00000
Bit[7] WDT Time-out Value Units Select
Watch-dog Timer Time-out Value
Binary coded, units = minutes (default) or seconds,
selectable via Bit[7] of WDT TIME OUT register (0x52).
0x00 Time out disabled
0x01 Time-out = 1 minute (second)
.........
0xFF Time-out = 255 minutes (seconds)
Watch-dog timer Configuration
Bit[0] Joy-stick Enable
=1
=0
Bit[1] Keyboard Enable
=1
=0
Bit[2] Mouse Enable
=1
=0
Bit[3] Reserved
Bits[7:4] WDT Interrupt Mapping
1111 = IRQ15
.........
0011 = IRQ3
0010 = Invalid
0001 = IRQ1
0000 = Disable
- 146 -
= 0 Minutes (default)
= 1 Seconds
WDT is reset upon an I/O read or write of Port
201h
WDT is not affected by I/O reads or writes to Port
201h.
WDT is reset upon a Keyboard interrupt.
WDT is not affected by Keyboard interrupts.
WDT is reset upon a Mouse interrupt.
WDT is not affected by Mouse interrupts.
DESCRIPTION
Rev. 04-17-07