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參數(shù)資料
型號(hào): W83787IF
廠商: WINBOND ELECTRONICS CORP
元件分類: 外設(shè)及接口
英文描述: WINBOND I/O WITH SERIAL-INFRARED SUPPORT
中文描述: MULTIFUNCTION PERIPHERAL, PQFP100
封裝: PLASTIC, QFP-100
文件頁數(shù): 111/123頁
文件大小: 1751K
代理商: W83787IF
877/787I APN 2
Page 2 of 2
Pin
98
99
100
W83787F/777F
nDACK2
IRQ6
DRQ2
W83787IF
same as 787
same as 787
same as 787
W83877F
nDACK_B
IRQ_F
DRQ_B
A description of the functional differences for each pin follows.
W83787IF:
Pin 1: If the nRESIDE is not used, the alternate functions can be used for serial infrared receive
input. Select IRRX3 by setting bits 5:4 in CR0D to be 10.
Pin 2: In CARD features this pin is not used, so can be used for IRTX2. Set bits 6:7 in CR0D to
00 (that is default setting).
Pin 3: same as pin 2. Set bits 5:4 in CR0D to 00 (that is default setting).
Pin 42-43: They can be programmed by CR0D register as input/output pin IRRX1/IRTX1 for
serial infrared communication.
Pin 91: During power-on reset, this pin is pulled down internally and is defined as GIOSEL. If
GIOSEL =0, this pin act as nDBENL. If GIOSEL =1, this pin act as nIDBEN (IDE Data
Bus Enable).
Pin 92: During power-on reset, if Pin #91GIOSEL =0, this pin act as nDBENH. If GIOSEL =1,
this pin act as GIO0 (General Purpose I/O). It can also be programmed by CR0C register
bit 2. During power-on reset, this pin is pulled up internally and is defined as URIRSEL.
If URIRSEL =1, then UARTB act as UART function. If URIRSEL =0, then UARTB act
as IR function.
Pin 94-95: They can be programmed by CR0D register as input/output pin IRRX4/IRTX3 for
serial infrared communication.
Pin 96: During power-on reset, if Pin #91GIOSEL =0, this pin act as IDED7. If GIOSEL =1, this
pin act as GIO1 (General Purpose I/O).
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