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PC87591L bảng dữ liệu(PDF) 50 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
tên linh kiện PC87591L
Giải thích chi tiết về linh kiện  LPC Mobile Embedded Controllers
PDF  437 Pages
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nhà sản xuất  NSC [National Semiconductor (TI)]
Trang chủ  http://www.national.com
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PC87591L bảng dữ liệu(HTML) 50 Page - National Semiconductor (TI)

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2.0 Signal/Pin Description and Configuration (Continued)
www.national.com
50
Revision 1.07
2.2.10 PS/2 Interface
2.2.11 Strap Configuration
Signal
128-Pin
LQFP
176-Pin
LQFP
I/O
Buffer
Type
Power
Well
Description
PSCLK4-1
88, 86,
84, 82
118,
116,
114,
110
I/O
INT/O2/12
VCC PS/2 Channel 1 through 4 Clock signal.
PSDAT4-1
89, 87,
85, 83
119,
117,
115,
111
I/O
INT/O2/12
VCC PS/2 Channel 1 through 4 Data signal.
Signal
128-Pin
LQFP
176-Pin
LQFP
I/O
Buffer
Type
Power
Well
Description
BADDR1-0 95-94
127-126
I
INCS
VCC I/O Base Address. Sampled at VCC Power-Up
reset to determine the base address of the
configuration Index-Data register pair as follows:
No pull-up resistor: 2E16-2F16
10 K
Ω external pull-up
resistor on BADDR0:4E16-4F16
10 K
Ω external pull-up
resistor on BADDR1:Core defined
ENV1-0
93-92
125-124
I
INCS
VCC Environment Select 1 and 0. Sampled at VCC
Power-Up reset to determine the device
operation environment, either IRE, OBD or DEV.
Each pin is pulled to 0 (set environment to IRE =
00) by an internal resistor or set to 1 by an
external 10 K
Ω pull-up resistor.
For further details refer to Section 2.3 on
page 53.
SHBM
97
131
I
INCS
VCC Shared Host BIOS Memory. Sampled at VCC
Power-Up reset to determine the state of the
shared Host BIOS memory. Pulled to 0 (disables
the shared host BIOS memory) by an internal
resistor or set to 1 by an external 10 K
Ω pull-up
resistor to enable the shared BIOS mode.
TRIS
96
128
I
INCS
VCC TRI-STATE. Forces the device to float all its
output and I/O pins (except for DAC outputs and
32KX2) if an external pull-up resistor is
connected. Sampled at VCC Power-Up reset.



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