- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄370028 > PXAC37 (NXP Semiconductors N.V.) XA 16-bit microcontroller family 32K/1024 OTP CAN transport layer controller 1 UART, 1 SPI Port, CAN 2.0B, 32 CAN ID Filters, transport layer co-proce PDF資料下載
參數(shù)資料
| 型號： | PXAC37 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | XA 16-bit microcontroller family 32K/1024 OTP CAN transport layer controller 1 UART, 1 SPI Port, CAN 2.0B, 32 CAN ID Filters, transport layer co-proce |
| 中文描述： | 的XA 16位微控制器系列32K/1024檢察官可以傳輸層控制器1的UART，1個SPI端口，CAN 2.0B總線，32可以讀取器，傳輸層合作proce |
| 文件頁數(shù)： | 26/68頁 |
| 文件大?。?/td> | 368K |
| 代理商： | PXAC37 |
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頁當(dāng)前第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
Philips Semiconductors
Preliminary specification
XA-C3
XA 16-bit microcontroller family
32K/1024 OTP CAN transport layer controller
1 UART, 1 SPI Port, CAN 2.0B, 32 CAN ID filters, transport layer co-processor
2000 Jan 25
19
PRE2
PRE1
PRE0
—
—
WDRUN
WDTOF
WDCON
8–BIT DOWN
COUNTER
PRESCALER
TCLK
MOV WFEED1,#A5H
MOV WFEED2,#5AH
WATCHDOG FEED SEQUENCE
WDL
SU00581A
—
INTERNAL RESET
Figure 14. Watchdog Timer in XA-C3
When the watchdog underflows, the following action takes place
(see Figure 14):
Autoload takes place.
Watchdog time–out flag is set
Watchdog run bit unchanged.
Autoload (WDL) register unchanged.
Prescaler tap unchanged.
All other device action same as External Reset.
Note that if the watchdog underflows, the Program counter will be
loaded from the Reset vector as in the case of an internal Reset.
The watchdog time–out flag can be examined to determine if the
watchdog has caused the Reset condition. The watchdog time–out
flag bit can be cleared by software.
WDCON Register Bit Definitions
WDCON[7]
PRE2
Prescaler Select 2, Reset to 1
WDCON[6]
PRE1
Prescaler Select 1, Reset to 1
WDCON[5]
PRE0
Prescaler Select 0, Reset to 1
WDCON[2]
WDRUN
Watchdog Run Control bit, Reset to 1
WDCON[1]
WDTOF
Timeout flag
UART
The XA–C3 includes 1 UART port (UART–0) that is compatible with
the enhanced UART used on the 8xC51FB. Baud rate selection is
somewhat different due to the clocking scheme used for the XA
timers.
Four other enhancements have been made to UART operation:
First, there are separate interrupt vectors for UART transmit and
receive functions. Second, the UART–0 transmitter has been
double–buffered, allowing packed transmission of data with no gaps
between bytes and less critical interrupt service routine timing.
Third, a break detect function has been added to UART–0. This
operates independently of the UART and provides a start–of–break
status bit that the User program may use to test BR0 (S0STAT[2]).
Fourth, an Overrun Error flag has been added to detect missed
characters in the received data stream.
The UART baud rate is determined by either a fixed division of the
oscillator (in UART–0 Modes 0 and 2) or by the Timer 1 or Timer 2
overflow rate (in UART–0 Modes 1 and 3).
Timer 1 defaults to clock UART–0. Timer 2 can clock UART–0
through T2CON via bits RCLK0 (T2CON[5]) and/or TCLK0
(T2CON[4]).
The serial port receive and transmit registers are both accessed at
Special Function Register S0BUF. Writing to S0BUF loads the
transmit register, and reading S0BUF accesses the physically
separate receive register.
The serial port can operate in 4 modes:
Mode 0: Serial I/O expansion mode.
Serial data enters and exits
through RxD. TxD outputs the shift clock. 8 bits are
transmitted/received (LSB first). (The baud rate is fixed at 1/16 the
oscillator frequency.)
Mode 1: Standard 8–bit UART mode.
10 bits are transmitted
(through TxD) or received (through RxD): a start bit (0), 8 data bits
(LSB first), and a stop bit (1). On receive, the stop bit goes into bit
RB8_0 (S0CON[2]). The baud rate is variable via Timer 1 or Timer 2
overflow rates.
Mode 2: Fixed rate 9–bit UART mode.
11 bits are transmitted
(through TxD) or received (through RxD): start bit (0), 8 data bits
(LSB first), a programmable 9th data bit, and a stop bit (1). On
Transmit, the 9th data bit TB8_0 (S0CON[3]) can be assigned the
value of 0 or 1. Or, for example, the parity bit (P, in the PSW) could
be moved into TB8_0. On receive, the 9th data bit goes into bit
RB8_0, while the stop bit is ignored. The baud rate is programmable
to 1/32 of the oscillator frequency.
Mode 3: Standard 9–bit UART mode.
11 bits are transmitted
(through TxD) or received (through RxD): a start bit (0), 8 data bits
(LSB first), a programmable 9th data bit, and a stop bit (1). In fact,
Mode 3 is the same as Mode 2 in all respects except baud rate. The
baud rate in Mode 3 is variable via Timer 1 or Timer 2 overflow
rates.
In all four modes, transmission is initiated by any instruction that
uses S0BUF as a destination register. Reception is initiated in Mode
0 by the condition RI_0 (S0CON[0]) = 0 AND REN_0 (S0CON[4]) =
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PXB16050U | NPN microwave power transistor |
| PY08-02 | INDUSTRIERELAIS FASSUNG PCB |
| PY08-02186697 | SOCKET PCB |
| PY14 | INDUSTRIERELAIS CHASSIS MONTAGESOCKEL |
| PY14-02 | INDUSTRIERELAIS LEITERPL MONTAGESOCKEL |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PXAC37KBA | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:XA 16-bit microcontroller family 32K/1024 OTP CAN transport layer controller 1 UART, 1 SPI Port, CAN 2.0B, 32 CAN ID Filters, transport layer co-proce |
| PXAC37KBBD | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:XA 16-bit microcontroller family 32K/1024 OTP CAN transport layer controller 1 UART, 1 SPI Port, CAN 2.0B, 32 CAN ID Filters, transport layer co-proce |
| PXAC37KFA | 功能描述:16位微控制器 - MCU OTP32K/1K 32 MHZ CAN EXT PLCC RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT |
| PXAC37KFA/00,512 | 功能描述:IC XA MCU 16BIT 32K OTP 44-PLCC RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:XA 標(biāo)準(zhǔn)包裝:250 系列:56F8xxx 核心處理器:56800E 芯體尺寸:16-位 速度:60MHz 連通性:CAN，SCI，SPI 外圍設(shè)備:POR，PWM，溫度傳感器，WDT 輸入/輸出數(shù):21 程序存儲器容量:40KB（20K x 16） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:6K x 16 電壓 - 電源 (Vcc/Vdd):2.25 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 6x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:48-LQFP 包裝:托盤 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323 |
| PXAC37KFBD | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:XA 16-bit microcontroller family 32K/1024 OTP CAN transport layer controller 1 UART, 1 SPI Port, CAN 2.0B, 32 CAN ID Filters, transport layer co-proce |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。