w83l517g Winbond Electronics Corp America, w83l517g Datasheet - Page 20

• Manufacturer Part Number: w83l517g
• Description: Winbond Lpc I/o For Notebook W83l517d/ W83l517d-f
• Manufacturer: Winbond Electronics Corp America

KBC and FLASH ROM Interface, continued
4.6
(PENROM#)
XA11-XA18
XA3-XA10
SYMBOL
ROMCS#
SYMBOL
MEMW#
MEMR#
VCC3V
(GP12)
(GP13)
(GP14)
(GP15)
(GP26)
(GP27)
(GP40-
(GP50-
GP47)
GP57)
GND
VCC
XA0
XA1
XA2
POWER PINS
73-80
81-84
86-89
10, 35, 61, 85
PIN
67
68
69
70
71
72
15, 51
40, 90
PIN
I/OD 12
I/O 12t
I/O 12t
OD 12
I/O
I/O
I/O
I/O
I/O
O 12t
O 12t
I/O
IN
O
O
O
O
O
12t
12t
12t
12t
12t
t
+3.3V power supply for core logic and driving 3V on host
interface.
+5V or +3.3V power supply for device output pad.
Ground.
Flash ROM interface Memory Read Enable
General purpose I/O PORT 1 ,
Flash ROM interface Memory Write Enable
General purpose I/O PORT 1 ,
Flash ROM interface Chip Select
General purpose I/O PORT 1 ,
During power-on reset , this pin is pulled down internally and is
defined as PENROM# and decoded memory address of BIOS
to output selected signal, which provides the power on value
for CR24 bit 1. A 4.7kΩ is recommended if intends to pull up
and disable BIOS ROM function .
Flash ROM interface Address 0.
General purpose I/O PORT 1 ,
Flash ROM interface Address 1.
General purpose I/O PORT 2 ,
Flash ROM interface Address 2.
General purpose I/O PORT 2 ,
Flash ROM interface Address [3:10].
General purpose I/O PORT 4 ,
Flash ROM interface Address [11:18].
General purpose I/O PORT 5 ,
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W83L517D/W83L517D-F
FUNCTION
FUNCTION