參數(shù)資料
型號: XE8000EV108
廠商: Semtech
文件頁數(shù): 113/143頁
文件大?。?/td> 0K
描述: EVAL BOARD FOR XE8806/XE8807
標準包裝: 1
類型: MCU
適用于相關(guān)產(chǎn)品: XE88LC06AMI026
所含物品: 完全組裝的評估板
產(chǎn)品目錄頁面: 585 (CN2011-ZH PDF)
Semtech 2006
www.semtech.com
12-2
XE8806A/XE8807A
12.1
Features
Input / output / analog port, 8 bits wide
Each bit can be set individually for input or output
Each bit can be set individually for open-drain or push-pull
Each bit can be set individually for pull-up or not (for input or open-drain mode)
In open-drain mode, pull-up is not active when corresponding pad is set to zero
The 8 pads can be connected individually to four internal analog lines (4 line analog bus)
Two internal freq. (16 kHz and cpuck) can be output on PB[2] and PB[3]
Product dependant:
Two PWM signal can be output on pads PB[0] and PB[1]
The synchronous serial interface (USRT) uses pads PB[5], PB[4]
The UART interface uses pads PB[6] and PB[7] for Tx and Rx
12.2
Overview
Port B is a multi-purpose 8 bit Input/output port. In addition to digital behavior, all pins can be used for analog
signals. Each port terminal can be individually selected as digital input or output or as analog for sharing one of four
possible analog lines.
12.3
Register map
Table 12-1 shows the Port B registers.
register name
RegPBOut
RegPBIn
RegPBDir
RegPBOpen
RegPBPullup
RegPBAna
Table 12-1: Default Port B registers
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