w83l950d Winbond Electronics Corp America, w83l950d Datasheet - Page 14

• Manufacturer Part Number: w83l950d
• Description: Peripheral Personal Computer Keyboard Controller
• Manufacturer: Winbond Electronics Corp America

3.1. Basic KBC Function Signals
SD [7:0]
GPIO 8 [7:0]
LPC I/F
SA2
GPIO 50
IOR#
GPIO 52
INT30
IOW#
GPIO 53
INT40
IRQ1
GPIO 42
INT0
SYMBOL
63-70
PIN
17
15
14
23
I/O24c(t)
I/O 12c(t)
I/O 24c
I/O24c
I/O24c
I/O12c
I/O 12c
I/O 12c
O12
INc
INc
INs
INs
INs
I/O
Inc
INt
INt
INt
These signal lines communicate data information over ISA
bus to the host. (ISA only)
General purpose IO port.
Pin63: LFRAME#,
Pin64: LRESET#.
Pin [68:65]: LAD [3:0],
Pin69: SERIRQ
Pin70: LCLK
These signal lines communicate data information through
LPC bus to the host.
Bus Type Selection please refer to 10 DBBCON register.
(No H/W strapping)
The signal line communicates address information over
ISA bus to the host. (ISA only)
General purpose IO port.
The signal line communicates control information over ISA
bus to the host. (ISA only)
General purpose IO port.
External interrupt input.
The signal line communicates control information over ISA
bus to the host. (ISA only)
General purpose IO port.
External interrupt input.
ISA IRQ1 Output. (ISA only)
General purpose IO port.
(Input level selected by PCTRL2_bit0)
External interrupt input
- 5 -
Publication Release Date: June 23, 2003
FUNCTION
W83L950D
Revision 1.0