HD64570 HITACHI [Hitachi Semiconductor], HD64570 Datasheet - Page 144

• Manufacturer Part Number: HD64570
• Description: Serial Communications Adaptor
• Manufacturer: HITACHI [Hitachi Semiconductor]

Table 5.1
Command Name
(Set Value)
End-of-message (06H) Specifies the transmit character, which is first transferred to the transmit
Abort transmission
(07H)
MP bit on (08H)
TX buffer clear (09H)
Table 5.2 Receive Commands
Command Name
(Set Value)
RX reset (11H)
Rev. 0, 07/98, page 128 of 453
Transmit Commands (cont)
Function
buffer after this command is issued, as the last character of the frame.
When the transmit character transmitted is a word, this command specifies
the transmit character written to D15 D8 as the last character of the frame
in CPU mode 0, and also specifies the transmit character written to D7 D0
as such in CPU modes 2 and 3.
Allows the transmitter to send the character marked with the end-of-
message attribute, transmit the CRC code in byte synchronous mode, or
sequentially transmit the FCS (CRC code) and flag in bit synchronous
mode.
Immediately transmits an 8-bit abort pattern 11111111 and clears the
transmit buffer.
This command is used in bit synchronous mode.
Sets the transmit data MP bit to 1, and then transmits a character. This
command is valid only for the first character transferred to the transmit
buffer after this command is issued. For details, see Multiprocessor
Support, in section 5.3.1.
This command operation is not guaranteed in modes other than
asynchronous mode.
Clears the transmit buffer, deleting buffer contents.
No other register is affected.
Function
Halts the receive shift register and sets the receiver to RX disable state;
clears the receive buffer and receive status in status registers 3 0 (ST3
ST0).
No other register is affected.