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參數(shù)資料
| 型號(hào)： | SAE81C91 |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 2 CHANNEL(S), 1M bps, LOCAL AREA NETWORK CONTROLLER, PQCC28 |
| 封裝： | PLASTIC, LCC-28 |
| 文件頁數(shù)： | 11/41頁 |
| 文件大?。?/td> | 521K |
| 代理商： | SAE81C91 |
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07Feb95@09:05h Intermediate Version
Semiconductor Group
18
SAE 81C90/91
Control Register
CTRL
76543210
Address: 12H
RX
TST
TSP
TSOV
SME
TCE
MM
Reset Value: 00H
rw
Bit(field)
Function
MM
Monitor Mode
’0’:
Message object 0 operates like all other objects.
’1’:
Message object 0 receives all identifiers that are not accepted
by other objects (corresponds to a Basic CAN receive register).
TCE
Transmit Check Enable
’0’:
If the transmit check detects an error, there is no intervention.
’1’:
If the transmit check detects an error, the message is invalidated by an
error frame and the error counter TCEC is incremented by 1.
If the counter reaches 4, the Bus Off status is initiated and, if enabled, an
interrupt (TCI) is generated.
SME
Sleep Mode Enable
’0’:
Normal operation.
’1’:
The sleep mode is enabled: the crystal oscillator is deactivated, all other
activities are inhibited.
The wake up is done by a reset signal or by an active signal at the CS pin
or by an input edge going from recessive to dominant at pin Rx0 or Rx1.
TSOV
Time Stamp Overflow
’0’:
There has been no overflow
’1’:
There was at least one overflow of the time-stamp timer.
TSP
Time Stamp Prescaler (Defines the input clock of the time-stamp timer)
’00’:
f
BL / 32
’01’:
f
BL / 64
’10’:
f
BL / 128
’11’:
f
BL / 256
(For
f
BL see baud-rate prescaler BRP).
TST
Time Stamp Test
’0’:
The prescaler is activated.
’1’:
The time-stamp prescaler is deactivated.
(Only for testing purposes, bit IM = MOD.0 must be set to ’1’).
RX
Input Monitor RX
This bit monitors the actual state of the digital input pin RX0.
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