參數(shù)資料
型號: XE8805AMI028LF
廠商: Semtech
文件頁數(shù): 131/156頁
文件大小: 0K
描述: IC DAS 16BIT FLASH 8K MTP 64LQFP
標(biāo)準(zhǔn)包裝: 160
系列: XE880x
應(yīng)用: 感測機(jī)
核心處理器: Coolrisc816?
程序存儲器類型: 閃存(22 kB)
控制器系列: XE8000
RAM 容量: 512 x 8
接口: UART,USRT
輸入/輸出數(shù): 24
電源電壓: 2.4 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 64-LQFP
包裝: 托盤
供應(yīng)商設(shè)備封裝: 64-LQFP(10x10)
產(chǎn)品目錄頁面: 585 (CN2011-ZH PDF)
配用: XE8000MP-ND - PROG BOARD AND PROSTART2 CARD
Semtech 2006
www.semtech.com
14-3
XE8805/05A
pos.
RegUartTxSta
rw
reset
description
7-2
-
r
000000
Unused
1
UartTxBusy
r
0 resetsystem
Uart busy transmitting
0
UartTxFull
r
0 resetsystem
RegUartTx full
Set by writing to RegUartTx
Cleared when transferring RegUartTx into
internal shift register
Table 14-4: RegUartTxSta
pos.
RegUartRx
rw
reset
description
7-0
UartRx
r
00000000
resetsystem
Received data
Table 14-5: RegUartRx
pos.
RegUartRxSta
rw
Reset
description
7-6
-
r
00
Unused
5
UartRxSErr
r
0 resetsystem
Start error
4
UartRxPErr
r
0 resetsystem
Parity error
3
UartRxFErr
r
0 resetsystem
Frame error
2
UartRxOErr
rc
0 resetsystem
Overrun error
Cleared by writing RegUartRxSta
1
UartRxBusy
r
0 resetsystem
Uart busy receiving
0
UartRxFull
r
0 resetsystem
RegUartRx full
Cleared by reading RegUartRx
Table 14-6: RegUartRxSta
14.4
Interrupts map
interrupt source
default mapping in the interrupt manager
Irq_uart_Tx
IrqHig(1)
Irq_uart_Rx
IrqHig(0)
Table 14-7: Interrupts map
14.5 Uart baud rate selection
In order to have correct baud rates, the Uart interface has to be fed with a stable and trimmed clock source. The
clock source can be the RC oscillator or the crystal oscillator. The precision of the baud rate will depend on the
precision of the selected clock source.
14.5.1
Uart on the RC oscillator
To select the RC oscillator for the Uart, the bit SelXtal in RegUartCmd has to be 0.
In order to obtain a correct baud rate, the RC oscillator frequency has to be set to one of the frequencies given in
the table on the next page. The precision of the obtained baud rate is directly proportional to the frequency
deviation with respect to the values in the table.
Not
Recommended
for
New
Designs
相關(guān)PDF資料
PDF描述
XE8807AMI026TLF IC MCU LOW PWR MTP FLASH 32-TQFP
XIO2200AGGW IC PCI-EXPRESS/BUS BRIDGE 176BGA
XIO2200AZGW IC PCI-EXPRESS/BUS BRIDGE 176BGA
XPC823ZT81B2T IC MPU POWERQUICC 81MHZ 256-PBGA
XPC8240RZU250E MCU HOST PROCESSOR 352-TBGA
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XE8805AMI028TLF 制造商:Semtech Corporation 功能描述:
XE8805MI028 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Data Acquisition MCU
XE8806A 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Ultra Low-Power Low-Voltage
XE8806AMI000 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Ultra Low-Power Low-Voltage
XE8806AMI026LF 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Ultra Low-Power Low-Voltage