数据搜索系统，热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

预览 PDF HTML

PSD913F2 数据表(PDF) 38 Page - STMicroelectronics

部件名 PSD913F2
功能描述  Configurable Memory System on a Chip for 8-Bit Microcontrollers
PDF  91 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

PSD913F2 数据表(HTML) 38 Page - STMicroelectronics

Back Button PSD913F2 Datasheet HTML 34Page - STMicroelectronics PSD913F2 Datasheet HTML 35Page - STMicroelectronics PSD913F2 Datasheet HTML 36Page - STMicroelectronics PSD913F2 Datasheet HTML 37Page - STMicroelectronics PSD913F2 Datasheet HTML 38Page - STMicroelectronics PSD913F2 Datasheet HTML 39Page - STMicroelectronics PSD913F2 Datasheet HTML 40Page - STMicroelectronics PSD913F2 Datasheet HTML 41Page - STMicroelectronics PSD913F2 Datasheet HTML 42Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 38 / 91 page
background image
PSD935G2
PSD9XX Family
37
The
PSD935G2
Functional
Blocks
(cont.)
9.3 Microcontroller Bus Interface
The “no-glue logic” PSD935G2 Microcontroller Bus Interface can be directly connected to
most popular microcontrollers and their control signals. Key 8-bit microcontrollers with their
bus types and control signals are shown in Table 14. The MCU interface type is
specified using the PSDsoft.
9.3.1. PSD935G2 Interface to a Multiplexed Bus
Figure 13 shows an example of a system using a microcontroller with a 8-bit multiplexed
bus and a PSD935G2. The ADIO port on the PSD935G2 is connected directly to the
microcontroller address/data bus. ALE latches the address lines internally. Latched
addresses can be brought out to Port E, F or G. The PSD935G2 drives the ADIO data bus
only when one of its internal resources is accessed and the RD input is active. Should the
system address bus exceed sixteen bits, Ports A, B, C, or F may be used as additional
address inputs.
9.3.2. PSD935G2 Interface to a Non-Multiplexed Bus
Figure 14 shows an example of a system using a microcontroller with a 8-bit
non-multiplexed bus and a PSD935G2. The address bus is connected to the ADIO Port,
and the data bus is connected to Port F. Port F is in tri-state mode when the PSD935G2
is not accessed by the microcontroller. Should the system address bus exceed sixteen
bits, Ports A, B or C may be used for additional address inputs.
Data
Bus
MCU
Width
CNTL0
CNTL1
CNTL2
PC7
PD0**
ADIO0
PF3-PF0 PF7-PF4
8031/8051
8
WR
RD
PSEN
*
ALE
A0
**
80C51XA
8
WR
RD
PSEN
*
ALE
A4
A3-A0
*
80C251
8
WR
PSEN
**
ALE
A0
**
80C251
8
WR
RD
PSEN
*
ALE
A0
**
80198
8
WR
RD
**
ALE
A0
**
68HC11
8
R/W
E
**
AS
A0
**
68HC05C0
8
WR
RD
**
AS
A0
**
68HC912
8
R/W
E
*
DBE
AS
A0
**
Z80
8
WR
RD
**
*
A0
D3-D0
D7-D4
Z8
8
R/W
DS
**
AS
A0
**
68330
8
R/W
DS
**
AS
A0
**
M37702M2
8
R/W
E
**
ALE
A0
D3-D0
D7-D4
Table 14. Microcontrollers and their Control Signals
**Unused CNTL2 pin can be configured as PLD input. Other unused pins (PD3-0, PA3-0) can be
**configured for other I/O functions.
**ALE/AS input is optional for microcontrollers with a non-multiplexed bus



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


数据表 下载

Go To PDF Page


链接网址



ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   数据表链接    |   链接交换   |   制造商名单
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