CD2401 Intel, CD2401 Datasheet - Page 121

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

Datasheet
Register Name: CSR
Register Description: Channel Status
Default Value: x’00
Access: Byte Read/Write
RxEn
Bit 7
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
RxFloff
Bit 6
Receiver Enable
0 = receiver disabled.
1 = receiver enabled.
Receive Flow Off
0 = normal
1 = the CD2401 requested the remote to stop transmission (Send XOFF command
given to the channel). This bit is reset when the CD2401 requests the remote to
restart transmission, the receiver is enabled/disabled, or the channel is reset.
Receive Flow On
0 = normal
1 = the CD2401 requested the remote to restart character transmission (Send XON
command given to the channel). This bit is reset when the next (non-flow control)
character is received, the receiver is enabled/disabled, or the channel is reset.
Reserved – always returns ‘0’ when read.
Transmitter Enable
0 = transmitter disabled.
1 = transmitter enabled.
Transmit Flow Off
0 = normal
1 = the CD2401 was requested by the remote to stop transmission. This bit is reset
when the CD2401 receives a request to resume transmission, the transmitter is
enabled/disabled, or the channel is reset.
Transmit Flow On
0 = normal
1 = the CD2401 was requested by the remote to resume transmission. This bit is reset
once character transmission is resumed, the transmitter is enabled/disabled, or the
channel is reset.
Reserved – always returns ‘0’ when read.
RxFlon
Bit 5
Bit 4
0
Multi-Protocol Communications Controller — CD2401
TxEn
Bit 3
TxFloff
Bit 2
Motorola Hex Address: x’1A
TxFlon
Bit 1
Intel Hex Address: x’19
Bit 0
0
121