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參數資料
型號: W83877AF
廠商: WINBOND ELECTRONICS CORP
元件分類: 外設及接口
英文描述: Multi-Function I/O Port Controller(多功能輸入/輸出口控制器)
中文描述: MULTIFUNCTION PERIPHERAL, PQFP100
封裝: QFP-100
文件頁數: 169/171頁
文件大小: 1634K
代理商: W83877AF
877A APN 2
Page 2 of 4
Bit 5 : RXW4C.
= 0 SIR of UART B will receving data immediately when tranmitting changing to receving.
= 1 SIR of UART B will wait for 4 characters time when transmitting changing to receving.
CR0C(Default 0x28)
Bit 7-5, 3-0 : Same as 877.
Bit 4 : ENBKIRSL.
= 0 IR selection of Configuration register is higher priority.
= 1 IR selection of Bank of UART B is higher priority.
CR16(Default 0x1e)
Bit 7,6,3,2,0 : Same as 877.
Bit 5 : G1QASEL
= 0 pins 96 function as IRQ_A.
= 1 pins 96 function as GIO1.
Bit 4 : G0QBSEL
= 0 pins 92 function as IRQ_B.
= 1 pins 92 function as GIO0.
Bit 1 : IRIDE.
= 0 pins 94, 95 functions as NCS0, NCS1, respectively.
= 1 pins 94, 95 function as IRRX2, IRTX2, respectively.
No power-on setting pin is used here.
CR2A(Default 0x00)
Bit 7-4 : IRTXDRQSL<3:0>; DRQA - DRQD selection for FIR in transmitter mode.
Bit 3-0 : IRRXDRQSL<3:0>; DRQA - DRQD selection for FIR in receiver mode.
Bit 7-4, Bit 3-0
0000
0001
0010
0011
0100
DMA selected
None
DMA_A
DMA_B
DMA_C
DMA_D
CR2B(Default 0x00)
Bit 7-6: PIN1FUN
PIN1FUN(CR2B.7)
0
0
1
1
PIN1FUN(CR2B.6)
0
1
0
1
Pin 1
IRQ_G
nRESIDE
DRQ_D
IRSL2
Bit 5-4: PIN2FUN
PIN2FUN(CR2B.5)
0
0
1
1
PIN2FUN(CR2B.4)
0
1
0
1
Pin 2
nCS
nDACK_D
IRSL1
IRSL2
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