công cụ tìm kiếm bảng dữ liệu linh kiện điện tử
  Vietnamese  ▼
ALLDATASHEET.VN

X  

Preview PDF HTML

PC87591L bảng dữ liệu(PDF) 81 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
Scroll/Zoom Zoom In 100%  Zoom Out
nhà sản xuất  NSC [National Semiconductor (TI)]
Trang chủ  http://www.national.com
Logo NSC - National Semiconductor (TI)

PC87591L bảng dữ liệu(HTML) 81 Page - National Semiconductor (TI)

Back Button PC87591L Datasheet HTML 77Page - National Semiconductor (TI) PC87591L Datasheet HTML 78Page - National Semiconductor (TI) PC87591L Datasheet HTML 79Page - National Semiconductor (TI) PC87591L Datasheet HTML 80Page - National Semiconductor (TI) PC87591L Datasheet HTML 81Page - National Semiconductor (TI) PC87591L Datasheet HTML 82Page - National Semiconductor (TI) PC87591L Datasheet HTML 83Page - National Semiconductor (TI) PC87591L Datasheet HTML 84Page - National Semiconductor (TI) PC87591L Datasheet HTML 85Page - National Semiconductor (TI) Next Button
Zoom Inzoom in Zoom Outzoom out
 81 / 437 page
background image
4.0 Embedded Controller Modules (Continued)
Revision 1.07
81
www.national.com
I/O Expansion Read/Write Bus Cycle
These cycles are always preceded by a Tidle clock cycle (see Figure 24). The I/O zone is not burstable.
I/O Expansion Example
Figure 25 shows an example of how two ports can be implemented off-chip, using I/O expansion. This example implements
two 8-bit ports by connecting the SELIO, RD and WR0 pins to the latch/buffer controls.
4.1.9
Development Support
The BIU provides the following support for development systems.
Bus Status Signals
The Bus Status BST0-2 signals indicate whether a transaction on the core bus was issued; they also indicate the transaction
type; see Table 41 on page 273.
CLK
A0-19
SELIO
RD
WR0-1
D0-15
Read
Write
TIdle
T1
T2
TIdle
T2
T3
T1
In
Out
BST0-2
Figure 24. I/O Expansion Bus Cycles (EWR bit in BCFG Register = 1)
Bus State
SELIO1
74x377
74x541
OE1
CE
OE2
WR01
RD
CP
8-Bit
D
8-Bit
Buffer
Figure 25. Example of an Implementation of Two Ports Using I/O Expansion
8
8
8
D0-7
Latch
PC87591x
1. This routing is for late write. If early write, SELIO is routed
to CP and WR0 to CE. All other routing is unchanged.



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  ...More


bảng dữ liệu tải về

Go To PDF Page


Link URL



Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không?  [ DONATE ] 

Alldatasheet là   |   Quảng cáo   |   Liên lạc với chúng tôi   |   Chính sách bảo mật   |   Liên kết đến bảng dữ liệu    |   Trao đổi link   |   Tìm kiếm theo nhà sản xuất
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com