W83977G Winbond Electronics Corp America, W83977G Datasheet - Page 16

• Manufacturer Part Number: W83977G
• Description: W83877TF plus KBC, CIR, RTC, Pb-free
• Manufacturer: Winbond Electronics Corp America

Host Interface, continued.
4.2
IRQ14
GP14
(
PLED
IRSL1
IRQ15
GP15
(
WDT
IRSL2
CLKIN
PHRI
GP20
(KBRST)
POFIRQ
GP21 (P13)
P16
VSB
GP22 (P14)
RIC
PANSW
PSCTL
GPACS
GPAWE
SYMBOL
SYMBOL
W83977F-A/ W83977G-A/ W83977AF-A/ W83977AG-A
Advanced Power Management
)
)
PIN
PIN
103
104
69
70
71
72
73
1
OUT 12t
OUT 12t
OUT 12t
OUT 12t
OUT 12t
OUT 12t
OUT 12t
OUT 12t
I/O 12t
I/O 12t
I/O 12t
I/O 12t
I/O 12t
I/O 12t
I/O
I/O
IN t
IN t
IN t
IN t
-
CR2C bit1, 0= 00 (default): Interrupt request 14
CR2C bit1, 0= 01: General purpose I/O port 1, bit 4. It can be configured
as a general purpose address decode output.
CR2C bit1, 0= 10: Power LED output.
CR2C bit1, 0= 11: IR module select signal 1. [W83977AF only]
CR2C bit3, 2= 00 (default): Interrupt request 15
CR2C bit3, 2= 01: General purpose I/O port 1, bit 5. It can be configured
as a general purpose address write enable output.
CR2C bit3, 2= 10: Watch-Dog timer output.
CR2C bit3, 2= 11: IR module select signal 2. [W83977AF only]
14.318/ 24 Mhz clock input, selectable through bit 5 of CR24.
CR2B bit2, 1=00 (default): Advanced Power Management (APM) phone
ring indicator. Detection of an active PHRI pulse or pulse train activates
the
CR2B bit2, 1=01: General purpose I/O port 2, bit 0. It can be configured
as keyboard reset (Keyboard P20).
CR2B bit4, 3=00 (default): Advanced Power Management (APM) power
off interrupt request.
CR2B bit4, 3=01: General purpose I/O port 2, bit 1. It can be configured
as Keyboard P13 I/O port.
CR2B bit4, 3=10: Keyboard P16 I/O port.
CR2B bit4, 3=11:
Advanced Power Management (APM) standby current source
CR2B bit5=0 (default): On/Off control for Advanced Power Management
(APM). This signal tells the main power supply whether power should be
turned on.
CR2B bit5=1: General purpose I/O port 2, bit 2. It can be configured as
Keyboard P14 I/O port.
CR2B bit7, 6=00 (default): On/Off switch for Advanced Power
Management (APM). This signal indicates a request to switch the power
on or off. When the VDD of the chip is disrupted, a high to low transition
on this pin indicates a switch on request. When VDD returns, a high to
low transition on this pin indicates a switch off request.
PSCTL
signal.
-8
RI
input of UART C. [W83977AF only]
FUNCTION
FUNCTION