w83977atg Winbond Electronics Corp America, w83977atg Datasheet - Page 25

• Manufacturer Part Number: w83977atg
• Description: W83877tf Plus Kbc, Gp I/o, Wake-up, Fir, Cir, Pb-free
• Manufacturer: Winbond Electronics Corp America

4.7
4.8
4.9
KDATA
MDATA
KCLK
MCLK
GA20
GP11
(IRQIN2)
KBRST
GP12
(WDTO)
KBLOCK
GP13
VCC
VSB
GND
VBAT
XTAL1
XTAL2
SYMBOL
SYMBOL
SYMBOL
KBC Interface
POWER PINS
ACPI Interface
20, 55, 85, 115
71
25, 62, 90, 120
PIN
PIN
59
60
67
68
56
57
58
64
63
61
PIN
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
IN
IN
I/O
I/O
NA
O
16u
16u
16u
16u
8t
12t
12t
12t
12t
16t
ts
C
+5V power supply for the digital circuitry.
+5V stand-by power supply for the digital circuitry.
Ground.
Keyboard Data.
PS2 Mouse Data.
Keyboard Clock.
PS2 Mouse Clock.
KBC GATE A20 (P21) Output. (CR2A bit 6 = 0, default)
General purpose I/O port 1 bit 1. (CR2A bit 6 = 1)
Alternate Function from GP11: Interrupt channel input.
W83C45 Keyboard Reset (P20) Output. (CR2A bit 7 = 0, default)
General purpose I/O port 1 bit 2. (CR2A bit 7 = 1)
Alternate Function 1 from GP12: Watchdog timer output.
W83C45 KINH (P17) Input. (CR2B bit 0 = 0, default)
General purpose I/O port 1 bit 3. (CR2B bit 0 = 1)
Battery voltage input.
32.768Khz Clock Input.
32.768Khz Clock Output.
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W83977ATF/W83977ATG
FUNCTION
FUNCTION
FUNCTION
Publication Release Date: May 2006
Revision 0.6