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參數(shù)資料
| 型號(hào)： | SCN2661BA1F28 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | Enhanced programmable communications interface EPCI |
| 中文描述： | 1 CHANNEL(S), 1M bps, SERIAL COMM CONTROLLER, CDIP28 |
| 封裝： | 0.600 INCH, CERAMIC, DIP-28 |
| 文件頁(yè)數(shù)： | 10/19頁(yè) |
| 文件大?。?/td> | 131K |
| 代理商： | SCN2661BA1F28 |
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Philips Semiconductors
Product specification
SCN2661/SCN68661
Enhanced programmable communications
interface (EPCI)
1994 Apr 27
10
Table 5.
Mode Register 1 (MR1)
MR17
MR16
MR15
MR14
MR13
MR12
MR11
MR10
Sync/Async
Parity Type
Parity Control
Character Length
Mode and Baud Rate Factor
Async: Stop bit length
00 = invalid
01 = 1 stop bit
10 = 1 1/2 stop bits
11 = 2 stop bits
0 = Odd
1 = Even
0 = Disabled
1 = Enabled
00 = 5 bits
01 = 6 bits
10 = 7 bits
11 = 8 bits
00 = Synchronous 1X rate
01 = Asynchronous 1X rate
10 = Asynchronous 16X rate
11 = Asynchronous 64X rate
Sync:
Number of
SYN char
0 = Double SYN
1 = Single SYN
Sync:
Transparency
control
0 = Normal
1 = Transparent
NOTE:
Baud rate factor in asynchronous applies only if external clock is selected. Factor is 16X if internal clock is selected. Mode must be
selected (MR11, MR10) in any case.
Table 6.
Mode Register 2 (MR2)
MR27 – MR24
MR23 – MR20
TxC
RxC
Pin 9
Pin 25
TxC
RxC
Pin 9
Pin 25
Mode
Baud Rate
Selection
0000
0001
0010
0011
0100
0101
0110
0111
E
E
I
I
E
E
I
I
E
I
E
I
E
I
E
I
TxC
TxC
1X
1X
TxC
TxC
16X
16X
RxC
1X
RxC
1X
RxC
16X
RxC
16X
1000
1001
1010
1011
1100
1101
1110
1111
E
E
I
I
E
E
I
I
E
I
E
I
E
I
E
I
XSYNC*
TxC
XSYNC*
1X
XSYNC*
TXC
XSYNC*
16X
RXC/TxC
BKDET
RxC
BKDET
RxC/TxC
BKDET
RxC
BKDET
sync
async
sync
async
sync
async
sync
async
See baud rates
in Table 1.
NOTES:
*
When pin 9 is programmed as XSYNC input, SYN1, SYN1–SYN2, and DLE–SYN1 detection is disabled.
E = External clock
I
= Internal clock (BRG)
1X and 16X are clock outputs.
Table 7.
Command Register (CR)
CR7
CR6
CR5
CR4
CR3
CR2
Receive
Control
(RxEN)
CR1
CR0
Operating Mode
Request
to Send
Reset Error
Sync/Async
Data Terminal
Ready
Transmit
Control
(TxEN)
00 = Normal operation
01 = Async:
Automatic
Echo mode
Sync: SYN and/or DLE
stripping mode
10 = Local loopback
11 = Remote loopback
0 = Force RTS
Output High
one clock
time after
TxSR
serialization
1 = Force RTS
output Low
0 = Normal
1 = Reset error
flags in
status reg.
(FE,OE,PE/
DLE detect.)
Async:
Force Break
0 = Normal
1 = Force
break
Sync
Send DLE
0 = Normal
1 = Send DLE
0 = Disable
1 = Enable
Not applicable
in
0 = Force DTR
output High
1 = Force DTR
output Low
0 = Disable
1 = Enable
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| SCN2661BC1A28 | 制造商:NXP Semiconductors 功能描述: |
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