參數(shù)資料
型號: OX16PCI952-TQFP-A
廠商: Electronic Theatre Controls, Inc.
英文描述: Integrated High Performance Dual UARTs, Parallel Port and 5.0v PCI interface
中文描述: 集成高性能的雙UART,并行端口和5.0V PCI接口
文件頁數(shù): 34/76頁
文件大小: 1386K
代理商: OX16PCI952-TQFP-A
DataSheet Revision 1.1
Page 34
OX16PCI952
OXFORD SEMICONDUCTOR LTD.
7.3
Reset Configuration
7.3.1
After a hardware reset, all writable registers are reset to
0x00, with the following exceptions:
DLL, which is reset to 0x01.
CPR, which is reset to 0x20.
The state of read-only registers following a hardware reset
is as follows:
RHR[7:0]: Indetermnate
RFL[6:0]: 0000000
2
TFL[6:0]: 0000000
2
LSR[7:0]: 0x60 signifying that both the transmtter and the
transmtter FIFO are empty
MSR[3:0]: 0000
2
MSR[7:4]: Dependent on modeminput lines DCD, RI,
DSR and CTS respectively
ISR[7:0]: 0x01, i.e. no interrupts are pending
ASR[7:0]: 1xx00000
2
RFC[7:0]: 00000000
2
GDS[7:0]: 00000001
2
DMS[7:0]: 00000010
2
CKA[7:0]: 00000000
2
The reset state of output signals are tabulated below:
Signal
Reset state
SOUT
Inactive High
RTS#
Inactive High
DTR#
Inactive High
Hardware Reset
Table 13: Output Signal Reset State
7.3.2
An additional feature available in the OX16PCI952 UARTs
is software resetting of the serial channel. This command
has the same effect on a single channel as a hardware
reset except it does not reset the clock source selections
(i.e. CKS register and CKA register). To reset the UART
write 0x00 to the Channel Software Reset register ‘CSR’.
Software Reset
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