參數(shù)資料
型號: HMS30C7210
廠商: Electronic Theatre Controls, Inc.
英文描述: ARM Based 32-Bit Microprocessor
中文描述: 基于ARM的32位微處理器
文件頁數(shù): 106/161頁
文件大小: 973K
代理商: HMS30C7210
HMS30C7110
2003 MagnaChip Semiconductor Ltd. All Rights Reserved
Version 1.5
106
31:6
0x00
Reserved
5
RO
0x0
DSR#
This bit is the complement of the Data Set Ready input. In the
loopback mode, this bit is equivalent to DTR in MCR.
4
RO
0x0
CTS#
This bit is the complement of the Clear to Send input. In the
loopback mode, this bit is equivalent to RTS in MCR.
3:2
0x00
Reserved
1
RO
0x0
DDSR
This bit is the Delta Data Set Ready indicator. It indicates that the
DSR# input to the chip has changed state since the last time it was
read by the CPU.
0
RO
0x0
DCTS
This bit is the Delta Clear to Send indicator. It indicates that the
CTS# input to the chip has changed stat since the last time it was
read by the CPU.
2.7.2.10.
Divisor Latch LSB Register (DLL)
The UART contains a programmable Baud Generator. The output frequency of the Baud Generator
is 16
×
the divisor number. The output of Baud Generator drives the transmitter and receiver
sections of the associated serial channel. This register contains the lower byte of the divisor number.
DLL is accessible only when LCR bit-7 is set to 1.
Table 2.66 DLL Bit Definition
Address :
1800_0000
Bits
Access Default Description
31:8
0x00
Reserved.
7: 0
WO
0x00
Lower byte of Divisor number
2.7.2.11.
Divisor Latch MSB Register (DLM)
This register contains the higher byte of the divisor number. DLM is accessible only when LCR bit-
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