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參數(shù)資料
| 型號： | SCN2661CC1N28 |
| 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, PDIP28 |
| 封裝： | 0.600 INCH, PLASTIC, DIP-28 |
| 文件頁數(shù)： | 9/19頁 |
| 文件大?。?/td> | 131K |
| 代理商： | SCN2661CC1N28 |
Philips Semiconductors
Product specification
SCN2661/SCN68661
Enhanced programmable communications
interface (EPCI)
1994 Apr 27
9
Table 4.
68661 Register Addressing
CE
A
1
X
0
0
0
0
1
1
1
1
A
0
X
0
0
1
1
0
0
1
1
R/W
FUNCTION
1
0
0
0
0
0
0
0
0
X
0
1
0
1
0
1
0
1
3-State data bus
Read receive holding register
Write transmit holding register
Read status register
Write SYN1/SYN2/DLE registers
Read mode register 1/2
Write mode register 1/2
Read command register
Write command register
LOAD
MODE REGISTER 1
LOAD
MODE REGISTER 2
SYNCHRONOUS
LOAD
SYN 1 REGISTER
DOUBLE
SYNC
LOAD
SYN 2 REGISTER
TRANSPARENT
MODE
LOAD
DLE REGISTER
INITIAL RESET
N
Y
Y
N
N
Y
TRANSPARENT
MODE
Y
N
LOAD
COMMAND REGISTER
OPERATE
RECONFIGURE
N
Y
DISABLE
RCVR AND XMTR
NOTE:
SYN1 Register must be written
before SYN2 can be written, and
SYN2 before DLE can be written.
NOTE:
Mode Register 1 must be written
before 2 can be written. Mode Register 2
need not be programmed if external
clocks are used.
SD00079
Figure 1. 68661 Initialization Flowchart
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