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參數資料
型號: W90221F
廠商: WINBOND ELECTRONICS CORP
英文描述: PA-RISC Embedded Micro-Controller(惠普PA-RISC結構的32位嵌入式微控制器)
中文描述: PA - RISC的嵌入式微控制器(惠普的PA - RISC結構的32位嵌入式微控制器)
文件頁數: 117/174頁
文件大小: 2102K
代理商: W90221F
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The above information is the exclusive intellectual property of Winbond Electronics and shall not be disclosed, distributed or reproduced without permission from Winbond.
117
Versi on 0. 4, March/2000
BA + 0x3f9,
DLAB = 1
DLM[0:7]
R/W
Divisor Latch Register (MS)
BA + 0x3fa
IIR[0:7]
R
Interrupt Identification Register
BA + 0x3fa
FCR[0:7]
W
FIFO Control Register
BA+ 0x3fb
LCR[0:7]
R/W
Line Control Register
BA + 0x3fc
MCR[0:7]
R/W
Modem Control Register
BA + 0x3fd
LSR[0:7]
R
Line Status Register
BA + 0x3fe
MSR[0:7]
R
MODEM Status Register
BA + 0x3ff
TOR[0:7]
R/W
Time Out Register
Table 6.7-2 : COM1 Register Map
(IO base (BA) : 0xf0000000)
Port Addr.
Symbol
Access
Description
BA + 0x2f8,
DLAB = 0
RBR[0:7]
R
Receiver Buffer Register
BA + 0x2f8,
DLAB = 0
THR[0:7]
W
Transmitter Holding Register
BA + 0x2f9,
DLAB = 1
IER[3:7]
R/W
Interrupt Enable Register
BA + 0x2f8,
DLAB = 1
DLL[0:7]
R/W
Divisor Latch Register (LS)
BA + 0x2f9,
DLAB = 1
DLM[0:7]
R/W
Divisor Latch Register (MS)
BA + 0x2fa
IIR[0:7]
R
Interrupt Identification Register
BA + 0x2fa
FCR[0:7]
W
FIFO Control Register
BA+ 0x2fb
LCR[0:7]
R/W
Line Control Register
BA + 0x2fc
MCR[0:7]
R/W
Modem Control Register
BA + 0x2fd
LSR[0:7]
R
Line Status Register
BA + 0x2fe
MSR[0:7]
R
MODEM Status Register
BA + 0x2ff
TOR[0:7]
R/W
Time Out Register
Receiver Buffer Register (RBR)
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