- 您現在的位置：買賣IC網 > PDF目錄359421 > VRS550-PAI25 (Electronic Theatre Controls, Inc.) VRS550 - 8kB Flash, 256B RAM, 25MHz, 8-Bit MCU VRS560 - 16kB Flash, 256B RAM, 25MHz, 8-Bit MCU PDF資料下載
參數資料
| 型號： | VRS550-PAI25 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | VRS550 - 8kB Flash, 256B RAM, 25MHz, 8-Bit MCU VRS560 - 16kB Flash, 256B RAM, 25MHz, 8-Bit MCU |
| 中文描述： | VRS550 - 8KB閃存，256B的RAM，25MHz的，8位微控制器VRS560 - 16kB的閃存，256B的RAM，25MHz的，8位微控制器 |
| 文件頁數： | 11/40頁 |
| 文件大?。?/td> | 868K |
| 代理商： | VRS550-PAI25 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁當前第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁
VRS550 / VRS560
VERSA
Datasheet Rev 1.1
1134 Ste Catherine Street West, Suite 900, Montreal, Quebec, Canada H3B 1H4
Tel: (514) 871-2447
http://www.goalsemi.com
11
Auxiliary P3 Port Functions
The Port 3 I/O pins are shared with the UART
interface, INT0 and INT1 interrupts, Timer 0 and Timer
1 inputs and finally the #WR and #RD lines when
external memory access is performed.
F
IGURE
10:
P3 P
ORT
S
TRUCTURE
D Flip-Flop
Q
Q
IC Pin
Read Register
Internal Bus
Write to
Register
Read Pin
X1
Vcc
Auxiliary
Function: Input
FunAuxiliary
The following table describes the auxiliary function of
the port 3 I/O pins.
T
ABLE
9:
P3 A
UXILIARY
F
UNCTION
T
ABLE
Pin
Mnemonic Function
P3.0 RXD
Serial Port:
Receive data in asynchronous
mode. Input and output data in
synchronous mode.
Serial Port:
Transmit data in asynchronous
mode. Output clock value in
synchronous mode.
External Interrupt 0
Timer 0 Control Input
External Interrupt 1
Timer 1 Control Input
Timer 0 Counter Input
Timer 1 Counter Input
Write signal for external memory
Read signal for external memory
P3.1 TXD
P3.2
INT0
P3.3
INT1
P3.4 T0
P3.5 T1
P3.6
P3.7
WR
RD
Software Particularities Concerning the Ports
Some instructions allow the user to read the logic state
of the output pin, while others allow the user to read
the content of the associated port register. These
instructions are called
read-modify-write
instructions. A
list of these instructions may be found in the table
below.
Upon execution of these instructions, the content of the
port register (at least 1 bit) is modified. The other read
instructions take the present state of the input into
account. For example, the instruction ANL P3, #01h
obtains the value in the P3 register; performs the
desired logic operation with the constant 01h; and
recopies the result into the P3 register. When users
want to take the present state of the inputs into
account, they must first read these states and perform
an AND operation between the reading and the
constant.
!"
When the port is used as an output, the register
contains information on the state of the output pins.
Measuring the state of an output directly on the pin is
inaccurate because the electrical level depends mostly
on the type of charge that is applied to it. The functions
shown below take the value of the register rather than
that of the pin.
T
ABLE
10:
L
IST OF
I
NSTRUCTIONS THAT
R
EAD AND
M
ODIFY THE
P
ORT
U
SING
R
EGISTER
V
ALUES
Instruction Function
ANL
Logical AND ex: ANL P0, A
ORL
Logical OR ex: ORL P2, #01110000B
XRL
Exclusive OR ex: XRL P1, A
JBC
Jump if the bit of the port is set to 0
CPL
Complement one bit of the port
INC
Increment the port register by 1
DEC
Decrement the port register by 1
DJNZ
Decrement by 1 and jump if the result
is not equal to 0
MOV P., C
Copy the held bit C to the port
CLR P.x
Set the port bit to 0
SETB P.x
Set the port bit to 1
相關PDF資料 |
PDF描述 |
|---|---|
| VRS550-QLI25 | VRS550 - 8kB Flash, 256B RAM, 25MHz, 8-Bit MCU VRS560 - 16kB Flash, 256B RAM, 25MHz, 8-Bit MCU |
| VRS550-QLC25 | VRS550 - 8kB Flash, 256B RAM, 25MHz, 8-Bit MCU VRS560 - 16kB Flash, 256B RAM, 25MHz, 8-Bit MCU |
| VRS550-QAI25 | VRS550 - 8kB Flash, 256B RAM, 25MHz, 8-Bit MCU VRS560 - 16kB Flash, 256B RAM, 25MHz, 8-Bit MCU |
| VRS801-51 | FUELLSTANDSFUEHLER RECHTWKL FRS801 51 F |
| VRYA15 | Varistor |
相關代理商/技術參數 |
參數描述 |
|---|---|
| VRS550-PLC25 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:VRS550 - 8kB Flash, 256B RAM, 25MHz, 8-Bit MCU VRS560 - 16kB Flash, 256B RAM, 25MHz, 8-Bit MCU |
| VRS550-PLI25 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:VRS550 - 8kB Flash, 256B RAM, 25MHz, 8-Bit MCU VRS560 - 16kB Flash, 256B RAM, 25MHz, 8-Bit MCU |
| VRS550-QAC25 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:VRS550 - 8kB Flash, 256B RAM, 25MHz, 8-Bit MCU VRS560 - 16kB Flash, 256B RAM, 25MHz, 8-Bit MCU |
| VRS550-QAI25 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:VRS550 - 8kB Flash, 256B RAM, 25MHz, 8-Bit MCU VRS560 - 16kB Flash, 256B RAM, 25MHz, 8-Bit MCU |
| VRS550-QLC25 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:VRS550 - 8kB Flash, 256B RAM, 25MHz, 8-Bit MCU VRS560 - 16kB Flash, 256B RAM, 25MHz, 8-Bit MCU |
發(fā)布緊急采購，3分鐘左右您將得到回復。