參數(shù)資料
型號: VMX51C900
廠商: Electronic Theatre Controls, Inc.
英文描述: Versa Mix 8051 MCU with LCD Controller and ADC
中文描述: 8051反之亦然混合與LCD控制器和ADC的微控制器
文件頁數(shù): 12/55頁
文件大?。?/td> 2395K
代理商: VMX51C900
VMX51C900
______________________________________________________________________________________________
www.ramtron.com
page 12 of 55
Auxiliary Port 1 Functions
The Port 1 I/O pins are shared with the PWMA &
PWMB outputs, the Timer2 EXT and the T2 input (see
following table).
Pin
Mnemonic Function
P1.0 T2
Timer 2 Counter input
P1.1 T2EX
Timer2 Auxiliary input
P1.2 PWMA
PWMA output
P1.3
P1.4
P1.5 PWMB
PWMB output
P1.6
P1.7
Auxiliary P3 Port Functions
The Port 3 I/O pins are shared with the UART
interface, the INT0 and INT1 interrupts, the Timer0 and
Timer1 inputs and the #WR and #RD lines when
external memory access is performed.
To maintain the correct line functionality in auxiliary
function mode, the P3 register Q output must be held
stable at 1. This is achieved by setting the
corresponding P3 bit to 1.
F
IGURE
5:
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
Auxiliary
Function: Output
The P3 register controls the P3 pin operation.
T
ABLE
13:
P
ORT
3
R
EGISTER
(P3)
-
SFR
B0
H
7
6
P3.7
P3.6
Bit
Mnemonic
7
P3.7
6
P3.6
5
P3.5
4
P3.4
3
P3.3
2
P3.2
1
P3.1
0
P3.0
5
4
3
2
1
0
P3.5
P3.4
P3.3
P3.2
P3.1
P3.0
Description
Each bit of the P3 register corresponds to
an I/O line:
0: Output transistor pulls the line to 0V
1: Output transistor is blocked so the pull-
up brings the I/O to 5V
To configure P3 pins as inputs or use
alternate P3 functions, the corresponding
bit must be set to 1
The following table describes the auxiliary functions of
the Port 3 I/O pins.
T
ABLE
14:
P3
A
UXILIARY
F
UNCTION
T
ABLE
Pin
Mnemonic
P3.0
RXD
Function
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
P3.1
TXD
P3.2
INT0
P3.3
INT1
P3.4
P3.5
P3.6
T0
T1
WR
P3.7
RD
Read signal for external memory
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相關代理商/技術參數(shù)
參數(shù)描述
VMX51C900-25-L 功能描述:8位微控制器 -MCU 8K+256 25MHz 5V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
VMX51C900-25-LG 功能描述:8位微控制器 -MCU 8K+256 25MHz 5V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
VMX51C900-25-L-G 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Versa Mix 8051 MCU with LCD Controller and ADC
VMX51C900-25-P 功能描述:8位微控制器 -MCU 8K+256 25MHz 5V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
VMX51C900-25-PG 功能描述:8位微控制器 -MCU 8K+256 25MHz 5V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT