參數(shù)資料
型號(hào)： MPC823UM_REV1_16-CPM7
廠商： Motorola, Inc.
英文描述： 10 AMP SUBMINIATURE POWER RELAY
中文描述： 通信處理器模塊
文件頁(yè)數(shù)： 37/74頁(yè)
文件大?。?/td> 234K
代理商： MPC823UM_REV1_16-CPM7
Communication Processor Module
MOTOROLA
MPC823 REFERENCE MANUAL
16-415
S
C
1
P
REN—SMCx Receive Enable
0 = SMCx receiver disabled.
1 = SMCx receiver enabled.
16.11.7.10 SMCx TRANSPARENT RECEIVE BUFFER DESCRIPTOR.
Using receive
(RX) buffer descriptors, the communication processor module reports information about the
received data for each buffer and closes the current buffer, generates a maskable interrupt,
and starts to receive data into the next buffer after one of the following events occurs:
An overrun error occurs
A full receive buffer is detected
The
ENTER HUNT MODE
command is issued
E—Empty
0 = The data buffer associated with this RX buffer descriptor is filled with received data
or data reception has been aborted due to an error condition. The core is free to
examine or write to any fields of this RX buffer descriptor. The communication
processor module does not use this buffer descriptor as long as the E bit is zero.
1 = The data buffer associated with this buffer descriptor is empty or is currently
receiving data. This RX buffer descriptor and its associated receive buffer are
owned by the communication processor module. Once the E bit is set, the core
must not write any fields of this RX buffer descriptor.
Bits 1, 4–5, 7–13, and 15—Reserved
These bits are reserved and must be set to 0.
Note:
The communication processor module sets all the status bits in this buffer
descriptor, but you must clear them before submitting the buffer descriptor to the
communication processor module.
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
OFFSET + 0
E
RES
W
I
RESERVED
CM
RESERVED
OV
RES
OFFSET + 2
DATA LENGTH
OFFSET + 4
RX DATA BUFFER POINTER
OFFSET + 6
NOTE:
You are only responsible for initializing the items in bold.
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