w83l950d Winbond Electronics Corp America, w83l950d Datasheet - Page 15
w83l950d
Manufacturer Part Number
w83l950d
Description
Peripheral Personal Computer Keyboard Controller
Manufacturer
Winbond Electronics Corp America
Datasheet
1.W83L950D.pdf
(105 pages)
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IRQ12
GPIO 43
INT1
SCI
GPIO 46
SCLK1
KBDCS#
GPIO 51
INT20
ECCS#
GPIO 47
SRDY1#
A20GATE
GPIO 45
TxD0
KBRST#
GPIO 44
RxD0
SYMBOL
PIN
22
19
16
18
20
21
I/O 12c(t)
I/O 12c(t)
I/O 12c(t)
I/O 12c(t)
I/O 12c(t)
I/O 12c
O12
O12
O12
O12
O12
INs
INc
INs
INc
INc
I/O
INt
Int
ISA IRQ12 Output. (ISA only)
General purpose IO port.
(Input level selected by PCTRL2_bit0)
External interrupt input.
SCI Output. (ISA only)
General purpose IO port.
(Input level selected by PCTRL2_bit0)
Serial I/O 1 function I/O
Decode the address 60h and 64h to input chip selected
signal. (ISA only)
General purpose IO port.
External interrupt input.
Decode the address 62h and 66h to input chip selected
signal. (ISA only)
General purpose IO port.
(Input level selected by PCTRL2_bit0)
Serial I/O 1 function I/O
Gate A20 output. This pin is controlled by AKBCCTRL.
(External pull-up circuit is needed.)
General purpose IO port.
(Input level selected by PCTRL2_bit0)
Serial I/O1 interface
CPU reset output. It should be connected to Chipset. This
pin is high after KBC reset.
(External pull-up circuit is needed.)
General purpose IO port.
(Input level selected by PCTRL2_bit0)
Serial I/O1 interface.
- 6 -
FUNCTION
W83L950D
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