User’s Manual
C166S V1 SubSystem
Asynchronous/Synchronous Serial Interface (ASC)
User’s Manual
10-7
V 1.6, 2001-08
FEN
[6]
rw
Framing Check Enable
(Asynchronous Mode only)
0
Ignore framing errors
1
Check framing errors
OEN
[7]
rw
Overrun Check Enable
0
Ignore overrun errors
1
Check overrun errors
PE
[8]
rwh Parity Error Flag
Set by hardware on a parity error (PEN=1).
Must be cleared by software.
FE
[9]
rwh Framing Error Flag
Set by hardware on a framing error (FEN=1).
Must be cleared by software.
OE
[10]
rwh Overrun Error Flag
Set by hardware on an overrun error (OEN=1).
Must be cleared by software.
FDE
[11]
rw
Fractional Divider Enable
0
Fractional divider disabled
1
Fractional divider enabled and used as
perscaler for baudrate generator
(bit BRS is don’t care)
ODD
[12]
rw
Parity Selection
0
Even parity selected (parity bit of 1 is included
in data stream on odd number of 1 and parity
bit of 0 is included in data stream on even
number of 1)
1
Odd parity selected (parity bit of 1 is included
in data stream on even number of 1 and parity
bit of 0 is included in data stream on odd
number of 1)
BRS
[13]
rw
Baudrate Selection
0
Divide clock by reload-value+constant
(depending on mode)
1
Additionally reduce serial clock to 2/3
Note: BRS is don’t care if FDE=1
(fractional divider selected)
Field
Bits
Typ Description
Содержание C166S V1 SubSystem
Страница 10: ...User s Manual C166S V1 SubSystem User s Manual I 6 V 1 6 2001 08...
Страница 16: ...User s Manual C166S V1 SubSystem Introduction User s Manual 1 6 V 1 6 2001 08...
Страница 126: ...User s Manual C166S V1 SubSystem Central Processing Unit User s Manual 3 96 V 1 6 2001 08...
Страница 178: ...User s Manual C166S V1 SubSystem Memory Organization User s Manual 4 52 V 1 6 2001 08...
Страница 206: ...User s Manual C166S V1 SubSystem Instruction Set User s Manual 5 28 V 1 6 2001 08...
Страница 306: ...User s Manual C166S V1 SubSystem Detailed Instruction Set User s Manual 6 100 V 1 6 2001 08...
Страница 362: ...User s Manual C166S V1 SubSystem The External Bus Interface User s Manual 8 40 V 1 6 2001 08...
Страница 452: ...User s Manual C166S V1 SubSystem General Purpose Timer Unit User s Manual 12 44 V 1 6 2001 08...
Страница 454: ...User s Manual C166S V1 SubSystem Instruction Index User s Manual 13 2 V 1 6 2001 08...
Страница 459: ......