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): 27/55頁
文件大?。?/td> 2395K
代理商: VMX51C900
VMX51C900
______________________________________________________________________________________________
www.ramtron.com
page 27 of 55
Timer 1 Reload Value in Modes 1 & 3 for UART Baud Rate
The following table provides examples of the Timer 1, 8-bit reload value when used as a UART baud rate generator
and the SMOD bit of the PCON register is set to 1.
22.184MHz
16.000MHz
14.745MHz
115200bps
FFh
-
-
57600bps
Feh
-
-
38400bps
FDh
-
FEh
31250bps
-
-
-
19200bps
FAh
-
FCh
9600bps
F4h
-
F8h
2400bps
D0h
DDh
E0h
1200bps
A0h
BBh
C0h
300bps
-
-
00h
12.000MHz
-
-
-
FEh
-
-
E6h
CCh
30h
11.059MHz
-
FFh
-
-
FDh
FAh
E8h
D0h
40h
8.000MHz
-
-
-
-
-
-
-
DDh
75h
3.57MHz
-
-
-
-
-
-
-
-
C2h
Timer 2 Reload Value in Modes 1 & 3 for UART Baud Rate
The following table contains examples of [RCAP2H, RCAP2L] reload values for Timer 2 when T2 is configured as
baud rate generator for the VMX51C900 UART.
22.184MHz
16.000MHz
14.745MHz
230400bps
FFFDh
-
FFFEh
115200bps
FFFAh
-
FFFCh
57600bps
FFF4h
-
FFF8h
38400bps
FFEEh
FFF3h
FFF4h
31250bps
FFEAh
FFF0h
FFF1h
19200bps
FFDCh
FFE6h
FFE8h
9600bps
FFB8h
FFCCh
FFD0h
2400bps
FEE0h
FF30h
FF40h
1200bps
FDC0h
FE5Fh
FE80h
300bps
F700h
F97Dh
FA00h
12.000MHz
-
-
-
-
FFF4h
-
FFD9h
FF64h
FEC7h
FB1Eh
11.059MHz
-
FFFDh
FFFAh
FFF7h
FFF5h
FFEEh
FFDCh
FF70h
FEE0h
FB80h
8.000MHz
-
-
-
-
FFF8h
FFF3h
FFE6h
FF98h
FF30h
FCBEh
3.57MHz
-
-
-
-
-
-
FFD1h
FFA3h
FE8Bh
UART initialization in Mode 3 using Timer 1
;*** INTIALIZE THE UART @ 9600BPS, Fosc=11.0592MHz
INISER0T1I: MOV A,T2CON
;RETRIEVE CURRENT VALUE OF T2CON
ANL A,#11001111B
;RCLK & TCLK BIT = 0 -> TO USE TIMER1
MOV T2CON,A
;BAUD RATE GENERATOR SOURCE FOR UART
MOV PCON,#80H
;SET THE SMOD BIT TO 1
MOV TL1,#0FAH
;CONFIG TIMER1 AT 8BIT WITH AUTO-RELOAD
MOV TH1,#0FAH
;CALCULATE THE TIMER 1 RELOAD VALUE
;TH1 = [(2^SMOD) * Fosc] / (32 * 12 * Fcomm)
;TH1 FOR 9600BPS @ 11.059MHz = FAh
MOV SCON,#05Ah
;CONFIG SCON_0 MODE_1
MOV TMOD,#00100000B ;CONFIG TIMER 1 IN MODE 2, 8BIT
; + AUTO RELOAD
MOV TCON,#01000000B ;START TIMER1
CLR SCON.0
;CLEAR UART RX, TX FLAGS
CLR SCON.1
MOV SBUF,#DATA
;SEND ONE BYTE ON THE SERIAL PORT
UART initialization in Mode 3, using Timer 2
;*** INTIALIZE THE UART @57600BPS, Fosc=11.0592MHz
INISER0T2I: MOV SCON,#05Ah
;CONFIG SCON_0 MODE_1,
;CALCULATE RELOAD VALUE WITH T2
;RCAP2H,RCAP2L = 65536 - [ Fosc / (32*Fcomm)]
MOV RCAP2H,#0FFh ;RELOAD VALUE 57600bps, 11.059MHz =FFFAh
MOV RCAP2L,#0DCh
;
MOV T2CON,#034h
;SERIAL PORT0, TIMER2 RELOAD START
CLR SCON.0
;CLEAR UART RX, TX FLAGS
CLR SCON.1
MOV SBUF,#DATA
;SEND ONE BYTE ON THE SERIAL PORT
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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(fēng)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(fēng)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(fēng)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(fēng)格:SMD/SMT