SC26C92 Ver la hoja de datos (PDF) - Philips Electronics
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SC26C92 Datasheet PDF : 31 Pages
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Philips Semiconductors
Dual universal asynchronous receiver/transmitter (DUART)
Product specification
SC26C92
BIT 7
BIT 6
BIT 5
BIT 4
MR2A
MR2B
0x00
CHANNEL MODE
00 = Normal
01 = Auto-Echo
10 = Local loop
11 = Remote loop
Tx CONTROLS
CTS
RTS
ENABLE Tx
0 = No
1 = Yes
0 = No
1 = Yes
NOTE: *Add 0.5 to values shown for 0 – 7 if channel is programmed for 5 bits/char.
BIT 3
0 = 0.563
1 = 0.625
2 = 0.688
3 = 0.750
BIT 2
BIT 1
STOP BIT LENGTH*
4 = 0.813
5 = 0.875
6 = 0.938
7 = 1.000
8 = 1.563
9 = 1.625
A = 1.688
B = 1.750
BIT 0
C = 1.813
D = 1.875
E = 1.938
F = 2.000
CSRA
CSRB
0x01
BIT 7
BIT 6
BIT 5
RECEIVER CLOCK SELECT
See Text
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
TRANSMITTER CLOCK SELECT
See Text
CRA
CRB
0x01
BIT 7
BIT 6
BIT 5
MISCELLANEOUS COMMANDS*
See Text
BIT 4
BIT 3
DISABLE Tx
0 = No
1 = Yes
BIT 2
ENABLE Tx
0 = No
1 = Yes
BIT 1
DISABLE Rx
0 = No
1 = Yes
BIT 0
ENABLE Rx
0 = No
1 = Yes
NOTE: Access to the miscellaneous commands should be separated by 3 X1 clock edges. A disabled transmitter cannot be loaded.
2000 Jan 31
14
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