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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: 123/171頁
文件大小: 1634K
代理商: W83877AF
W83877AF
Publication Release Date: Dec. 1996
Preliminary Version 0.52
- 121 -
IRMODE1 (bit 1): IR function mode selection bit 1
IRMODE0 (bit 0): IR function mode selection bit 0
IR MODE
IR FUNCTION
IRTX
IRRX
00X
Disable
tri-state
high
010*
IrDA
Active pulse 1.6
μ
S
Active pulse 3/16 bit time
Demodulation into SINB
011*
IrDA
Demodulation into SINB
100
ASK-IR
Inverting IRTX pin
routed to SINB
101
ASK-IR
Inverting IRTX & 500 KHz clock
routed to SINB
110
ASK-IR
Inverting IRTX
Demodulation into SINB
111*
ASK-IR
Inverting IRTX & 500 KHz clock
Demodulation into SINB
Note: The notation is normal mode in the IR function.
The SIR schematic diagram for registers CRC and CRD is shown below.
8.2.15 Configuration Register E (CR0E), Configuration Register F (CR0F)
Reserved for testing. Should be kept all 0's.
1
0
1
MUX 0
1
0
01
00
10
11
11,00
01
10
1 MUX
0
1 MUX
0
1
0 MUX
IRDA Mod.
3/16
IRDA Mod.
Mod1.6u
IRDA
IRMODE0
(CRD.bit0)
IRMODE2
(CRD.bit2)
URIRSEL
(CRC,bit3)
Transmission
Time Frame
16550A
SIN
UART2
SOUT
RX2INV
(CRC.bit1)
URIRSEL
(CRC.bit3)
1
0 MUX
SIRRX1~0
ASK_IR
SIN2
IRMODE1
(CRD.bit1)
(CRD.bit3)
HUPLX
IRMODE0
500KHZ
MUX
MUX
IRMODE2
(CRD.bit2)
IRMODE2,1=00
disable
IRTX1
IRTX2
SOUT2
NCS1
IRRX1
IRRX2
+5V
NCS0
+5V
SIRTX1~0
CRD.bit7,6
TX2INV
CRC.bit0
MUX
MUX
IR-DA
Demodulation
Demodulation
(default)
(default)
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