參數(shù)資料
型號: SAB82525N
廠商: INFINEON TECHNOLOGIES AG
英文描述: Data Communications ICs
中文描述: 數(shù)據(jù)通信集成電路
文件頁數(shù): 95/126頁
文件大?。?/td> 730K
代理商: SAB82525N
Semiconductor Group
95
SAB 82525
SAB 82526
SAF 82525
SAF 82526
Receive Status Register (READ)
RSTA
VFR
RDO
CRC
RAB
HA1
HA0
C/R
LA
(27/67)
7
0
VFR … Valid Frame
Determines whether a valid frame has been received.
1 … Valid
0 … Invalid
a frame which is not an integer number of 8 bits (n
×
8 bits) in length (e.g. 25 bit), or
a frame which is too short depending on the selected operation mode via MODE (MDS1,
MDS0, ADM) as follows:
Auto-/non-auto mode (16-bit address): 4 bytes
Auto-/non-auto mode (8-bit address): 3 bytes
Transparent mode 1:3 bytes.
Transparent mode 0:2 bytes.
Shorter frames are not reported.
Note:
RDO … Receive Data Overflow
A data overflow has occurred within the actual frame.
Caution: Data loss because the CPU did not serve RME or RPF interrupt in time.
CRC … CRC compare/check
0 … CRC check failed; received frame contains errors.
1 … CRC check o.k.; received frame is error-free.
RAB … Receive Message Aborted
The received frame was aborted from the transmitting station.
According to the HDLC protocol, this frame must be discarded by the CPU.
An invalid frame is either
相關(guān)PDF資料
PDF描述
SAB82526 Data Communications ICs
SAB82526N Data Communications ICs
SAF82525N Data Communications ICs
SAF82526 Data Communications ICs
SAF82526N Data Communications ICs
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