參數(shù)資料
型號: TOOLSTICK300DC
廠商: Silicon Laboratories Inc
文件頁數(shù): 10/178頁
文件大?。?/td> 0K
描述: TOOLSTICK DAUGHTER CARD
標準包裝: 1
系列: ToolStick
類型: MCU
適用于相關(guān)產(chǎn)品: C8051F300
所含物品: 子卡
Rev. 2.9
107
C8051F300/1/2/3/4/5
SFR Definition 12.1. XBR0: Port I/O Crossbar Register 0
SFR Definition 12.2. XBR1: Port I/O Crossbar Register 1
Bit7:
UNUSED. Read = 0b; Write = don’t care.
Bits6–0: XSKP[6:0]: Crossbar Skip Enable Bits
These bits select Port pins to be skipped by the Crossbar Decoder. Port pins used as ana-
log inputs (for ADC or Comparator) or used as special functions (VREF input, external oscil-
lator circuit, CNVSTR input) should be skipped by the Crossbar.
0: Corresponding P0.n pin is not skipped by the Crossbar.
1: Corresponding P0.n pin is skipped by the Crossbar.
R/W
Reset Value
XSKP6
XSKP5
XSKP4
XSKP3
XSKP2
XSKP1
XSKP0
00000000
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
SFR Address:
0xE1
Bits7–6: PCA0ME: PCA Module I/0 Enable Bits
00: All PCA I/O unavailable at Port pins.
01: CEX0 routed to Port pin.
10: CEX0, CEX1 routed to Port pins.
11: CEX0, CEX1, CEX2 routed to Port pins.
Bit5:
CP0AOEN: Comparator0 Asynchronous Output Enable
0: Asynchronous CP0 unavailable at Port pin.
1: Asynchronous CP0 routed to Port pin.
Bit4:
CP0OEN: Comparator0 Output Enable
0: CP0 unavailable at Port pin.
1: CP0 routed to Port pin.
Bit3:
SYSCKE: /SYSCLK Output Enable
0: /SYSCLK unavailable at Port pin.
1: /SYSCLK output routed to Port pin.
Bit2:
SMB0OEN: SMBus I/O Enable
0: SMBus I/O unavailable at Port pins.
1: SDA, SCL routed to Port pins.
Bit1:
URX0EN: UART RX Enable
0: UART RX0 unavailable at Port pin.
1: UART RX0 routed to Port pin P0.5.
Bit0:
UTX0EN: UART TX Output Enable
0: UART TX0 unavailable at Port pin.
1: UART TX0 routed to Port pin P0.4.
R/W
Reset Value
PCA0ME
CP0AOEN CP0OEN SYSCKE SMB0OEN URX0EN
UTX0EN 00000000
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
SFR Address:
0xE2
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