- 您現在的位置：買賣IC網 > PDF目錄374039 > ADUC824BS (ANALOG DEVICES INC) MicroConverter, Dual-Channel 16-/24-Bit ADCs with Embedded FLASH MCU PDF資料下載
參數資料
| 型號： | ADUC824BS |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | MicroConverter, Dual-Channel 16-/24-Bit ADCs with Embedded FLASH MCU |
| 中文描述： | 8-BIT, FLASH, 12.58 MHz, MICROCONTROLLER, PQFP52 |
| 封裝： | PLASTIC, MQFP-52 |
| 文件頁數： | 51/68頁 |
| 文件大小： | 1060K |
| 代理商： | ADUC824BS |
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頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁當前第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁
REV. B
ADuC824
–51–
8051-COMPATIBLE ON-CHIP PERIPHERALS
This section gives a brief overview of the various secondary periph-
eral circuits are also available to the user on-chip. These remaining
functions are fully 8051-compatible and are controlled via standard
8051 SFR bit definitions.
Parallel I/O Ports 0
–
3
The ADuC824 uses four input/output ports to exchange data with
external devices. In addition to performing general-purpose I/O,
some ports are capable of external memory operations; others are
multiplexed with an alternate function for the peripheral features
on the device. In general, when a peripheral is enabled, that pin
may not be used as a general purpose I/O pin.
Port 0 is an 8-bit open drain bidirectional I/O port that is directly
controlled via the Port 0 SFR (SFR address = 80 hex). Port 0
pins that have 1s written to them via the Port 0 SFR will be
configured as open drain and will therefore float. In that state,
Port 0 pins can be used as high impedance inputs. An external
pull-up resistor will be required on Port 0 outputs to force a
valid logic high level externally. Port 0 is also the multiplexed
low-order address and data bus during accesses to external pro-
gram or data memory. In this application it uses strong internal
pull-ups when emitting 1s.
Port 1 is also an 8-bit port directly controlled via the P1 SFR
(SFR address = 90 hex). The Port 1 pins are divided into two
distinct pin groupings.
P1.0 and P1.1 pins on Port 1 are bidirectional digital I/O pins with
internal pull-ups. If P1.0 and P1.1 have 1s written to them via the
P1 SFR, these pins are pulled high by the internal pull-up resis-
tors. In this state they can also be used as inputs; as input pins
being externally pulled low, they will source current because of
the internal pull-ups. With 0s written to them, both these pins
will drive a logic low output voltage (VOL) and will be capable of
sinking 10 mA compared to the standard 1.6 mA sink capa-
bility on the other port pins. These pins also have various
secondary functions described in Table XXI.
Table XXI. Port 1, Alternate Pin Functions
Pin
Alternate Function
P1.0
P1.1
T2 (Timer/Counter 2 External Input)
T2EX (Timer/Counter 2 Capture/Reload Trigger)
The remaining Port 1 pins (P1.2–P1.7) can only be configured
as Analog Input (ADC), Analog Output (DAC) or Digital Input
pins. By (power-on) default these pins are configured as Analog
Inputs, i.e., ‘1’ written in the corresponding Port 1 register bit.
To configure any of these pins as digital inputs, the user should
write a ‘0’ to these port bits to configure the corresponding pin
as a high impedance digital input.
Port 2 is a bidirectional port with internal pull-up resistors directly
controlled via the P2 SFR (SFR address = A0 hex). Port 2 pins
that have 1s written to them are pulled high by the internal pull-up
resistors and, in that state, they can be used as inputs. As inputs,
Port 2 pins being pulled externally low will source current because
of the internal pull-up resistors. Port 2 emits the high order
address bytes during fetches from external program memory
and middle and high order address bytes during accesses to the
24-bit external data memory space.
Port 3 is a bidirectional port with internal pull-ups directly
controlled via the P2 SFR (SFR address = B0 hex). Port 3 pins
that have 1s written to them are pulled high by the internal pull-ups
and in that state they can be used as inputs. As inputs, Port 3
pins being pulled externally low will source current because of the
internal pull-ups. Port 3 pins also have various secondary func-
tions described in Table XXII.
Table XXII. Port 3, Alternate Pin Functions
Pin
Alternate Function
P3.0
RXD (UART Input Pin)
(or Serial Data I/O in Mode 0)
TXD (UART Output Pin)
(or Serial Clock Output in Mode 0)
INT0
(External Interrupt 0)
INT1
(External Interrupt 1)
T0 (Timer/Counter 0 External Input)
T1 (Timer/Counter 1 External Input)
WR
(External Data Memory Write Strobe)
RD
(External Data Memory Read Strobe)
P3.1
P3.2
P3.3
P3.4
P3.5
P3.6
P3.7
The alternate functions of P1.0, P1.1, and Port 3 pins can only be
activated if the corresponding bit latch in the P1 and P3 SFRs
contains a 1. Otherwise, the port pin is stuck at 0.
Timers/Counters
The ADuC824 has three 16-bit Timer/Counters: Timer 0,
Timer 1, and Timer 2. The Timer/Counter hardware has been
included on-chip to relieve the processor core of the overhead
inherent in implementing timer/counter functionality in soft-
ware. Each Timer/Counter consists of two 8-bit registers THx and
TLx (x = 0, 1, and 2). All three can be configured to operate
either as timers or event counters.
In ‘Timer’ function, the TLx register is incremented every machine
cycle. Thus one can think of it as counting machine cycles. Since a
machine cycle consists of 12 core clock periods, the maximum
count rate is 1/12 of the core clock frequency.
In ‘Counter’ function, the TLx register is incremented by a 1-to-0
transition at its corresponding external input pin, T0, T1, or T2.
In this function, the external input is sampled during S5P2 of
every machine cycle. When the samples show a high in one cycle
and a low in the next cycle, the count is incremented. The new
count value appears in the register during S3P1 of the cycle follow-
ing the one in which the transition was detected. Since it takes two
machine cycles (24 core clock periods) to recognize a 1-to-0 transi-
tion, the maximum count rate is 1/24 of the core clock frequency.
There are no restrictions on the duty cycle of the external input
signal, but to ensure that a given level is sampled at least once
before it changes, it must be held for a minimum of one full machine
cycle. Remember that the core clock frequency is programmed
via the CD0–2 selection bits in the PLLCON SFR.
相關PDF資料 |
PDF描述 |
|---|---|
| ADUC831 | LJT 6C 6#22D PIN RECP |
| ADUC831BCP | Circular Connector; No. of Contacts:6; Series:LJT07R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:9; Circular Contact Gender:Socket; Circular Shell Style:Jam Nut Receptacle; Insert Arrangement:9-35 |
| ADUC831BS | MicroConverter, 12-Bit ADCs and DACs with Embedded 62 kBytes Flash MCU |
| ADUC836 | MicroConverter, Dual 16-Bit-ADCs with Embedded 62 kB Flash MCU |
| ADUC836BCP | MicroConverter, Dual 16-Bit-ADCs with Embedded 62 kB Flash MCU |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ADUC824BS-DEN | 制造商:Analog Devices 功能描述: |
| ADUC824BS-REEL | 制造商:Analog Devices 功能描述:MCU 8-Bit ADuC8xx 8052 CISC 8KB Flash 3.3V/5V 52-Pin MQFP T/R 制造商:Analog Devices 功能描述:24BIT ADC/EMBEDDED 8BIT MCU+FLASH MEMORY - Tape and Reel 制造商:Rochester Electronics LLC 功能描述:24BIT ADC/EMBEDDED 8BIT MCU+FLASH MEMORY - Tape and Reel |
| ADUC824BSZ | 功能描述:IC MCU 8K FLASH ADC/DAC 52MQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC8xx 標準包裝:250 系列:LPC11Uxx 核心處理器:ARM? Cortex?-M0 芯體尺寸:32-位 速度:50MHz 連通性:I²C，Microwire，SPI，SSI，SSP，UART/USART，USB 外圍設備:欠壓檢測/復位，POR，WDT 輸入/輸出數:40 程序存儲器容量:96KB（96K x 8） 程序存儲器類型:閃存 EEPROM 大小:4K x 8 RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):1.8 V ~ 3.6 V 數據轉換器:A/D 8x10b 振蕩器型:內部 工作溫度:-40°C ~ 85°C 封裝/外殼:48-LQFP 包裝:托盤 其它名稱:568-9587 |
| ADUC824BSZ-DEN | 功能描述:8052 MicroConverter? ADuC8xx Microcontroller IC 8-Bit 12.58MHz 8KB (8K x 8) FLASH 制造商:analog devices inc. 系列:MicroConverter? ADuC8xx 包裝:- 零件狀態:上次購買時間 核心處理器:8052 核心尺寸:8-位 速度:12.58MHz 連接性:EBI/EMI，I2C，SPI，UART/USART 外設:POR，PSM，溫度傳感器，WDT I/O 數:34 程序存儲容量:8KB（8K x 8） 程序存儲器類型:閃存 EEPROM 容量:640 x 8 RAM 容量:256 x 8 電壓 - 電源（Vcc/Vdd）:2.7 V ~ 5.25 V 數據轉換器:A/D 3x16b，4x24b；D/A 1x12b 振蕩器類型:內部 工作溫度:-40°C ~ 85°C（TA） 封裝/外殼:- 供應商器件封裝:- 標準包裝:1 |
| ADUC824BSZ-REEL | 功能描述:IC MCU 8K FLASH ADC/DAC 52MQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC8xx 標準包裝:38 系列:Encore!® XP® 核心處理器:eZ8 芯體尺寸:8-位 速度:5MHz 連通性:IrDA，UART/USART 外圍設備:欠壓檢測/復位，LED，POR，PWM，WDT 輸入/輸出數:16 程序存儲器容量:4KB（4K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:1K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 3.6 V 數據轉換器:- 振蕩器型:內部 工作溫度:-40°C ~ 105°C 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 包裝:管件 其它名稱:269-4116Z8F0413SH005EG-ND |
發布緊急采購，3分鐘左右您將得到回復。