CD2401 Intel, CD2401 Datasheet - Page 120

• Manufacturer Part Number: CD2401
• Description: Multi-protocol Communications Controller
• Manufacturer: Intel

CD2401 — Multi-Protocol Communications Controller
120
Register Name: CSR
Register Description: Channel Status
Default Value: x’00
Access: Byte Read/Write
RxEn
Bit 7
HDLC Mode
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Asynchronous Mode
If the host determines that a flow control state is inappropriate, it can be cleared by enabling/
disabling the transmitter or receiver by a CCR command.
RxFlag
Bit 6
RxFrame
Receiver Enable
0 = receiver disabled.
1 = receiver enabled.
Receive Flag
0 = currently not receiving flag/SYN.
1 = currently receiving flag/SYN.
Receive Frame
0 = currently not receiving frame.
1 = currently receiving frame.
Receive Mark
0 = currently not receiving continuous mark.
1 = currently receiving continuous mark.
Transmitter Enable
0 = transmitter disabled.
1 = transmitter enabled.
Transmit Flag
0 = currently not transmitting flag.
1 = currently transmitting flag.
Transmit Frame
0 = currently not transmitting frame.
1 = currently transmitting frame.
Transmit Mark
0 = currently not transmitting continuous ‘1’s.
1 = currently transmitting continuous ‘1’s.
Bit 5
RxMark
Bit 4
TxEn
Bit 3
TxFlag
Bit 2
Motorola Hex Address: x’1A
TxFrame
Bit 1
Intel Hex Address: x’19
Datasheet
TxMark
Bit 0