User’s Manual
C166S V1 SubSystem
Asynchronous/Synchronous Serial Interface (ASC)
User’s Manual
10-13
V 1.6, 2001-08
receive circuit then waits for the next start bit (1-to-0 transition) at the receive data input
line.
Note: The receiver input pin RXD must be configured for input.
Asynchronous reception is stopped by clearing bit CON_REN. A currently received
frame is completed including the generation of the receive interrupt request and an error
interrupt request, if appropriate. Start bits that follow this frame will not be recognized.
Note: In wake-up mode, received frames are transferred to the receive FIFO register
only if the 9th bit (the wake-up bit) is 1. If this bit is 0, no receive interrupt request
will be activated and no data will be transferred.
RBUF
Receive Buffer Register
Reset value: 0000
H
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
RD_VALUE
r
rw
Field
Bits
Typ Description
RD_VALUE
[8:0]
rw
Receive Data Register Value
RBUF contains the received data bits and,
depending on the selected mode, the parity bit in
asynchronous and synchronous operating mode of
the ASC.
In asynchronous operating mode with M=011 (7-bit
data + parity) the received parity bit is written into
RD7.
In asynchronous operating mode with M=111 (8-bit
data + parity) the received parity bit is written into
RD8.
0
[15:9]
r
Reserved for future use; reading returns 0;
writing to these bit positions has no effect.
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: ......