W90N740CD WINBOND [Winbond], W90N740CD Datasheet - Page 36

• Manufacturer Part Number: W90N740CD
• Description: 32-Bit ARM7TDMI-Based Micro-Controller
• Manufacturer: WINBOND [Winbond]

W90N740CD/W90N740CDG
USBCKS [15] ： USB clock source Select bit
0 = USB clock 48MHz input from internal PLL ( 480MHz/10)
1 = USB clock 48MHz input from external GP12 pin, this GPIO pin direction must set to input.
GDMA [13] ： GDMA clock enable bit
0 = Disable GDMA clock
1 = Enable GDMA clock
NATA [12] ： NATA clock enable bit
0 = Disable NATA clock
1 = Enable NATA clock
EMC1 [11] ： EMC1 clock enable bit
0 = Disable EMC1 clock
1 = Enable EMC1 clock
EMC0 [10] ： EMC0 clock enable bit
0 = Disable EMC0 clock
1 = Enable EMC0 clock
WDTS [9] : WDTS clock selected bit
0 = Clock from EXTAL pin is used as WDT counting clock
1 = Clock from EXTAL pin is divided by 256, which is used as WDT counting clock
WDT [8] ： WDT clock enable bit
0 = Disable WDT counting clock
1 = Enable WDT counting clock
USB [7] ： USB clock enable bit
0 = Disable USB clock
1 = Enable USB clock
TIMER [6] ： Timer clock enable bit
0 = Disable Timer clock
1 = Enable Timer clock
UART [5] ： UART clock enable bit
0 = Disable UART clock
1 = Enable UART clock
Publication Release Date: September. 19, 2005
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Revision A7