HD64570 HITACHI [Hitachi Semiconductor], HD64570 Datasheet - Page 421

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

Register
MSCI (Channel 0)
MSCI Status Register 2
Channel 0: ST2 Channel 0
MSCI Status Register 3
Channel 0: ST3 Channel 0
CPU
Mode
0, 1
24H
25H
Address
CPU
Mode
2, 3
25H
24H
Remarks
Async
Byte sync
Bit sync HDLC
Read/Write
Initial value
Receive end of message
• Bit synchronous mode
0:
1:
Receive frame end
not detected
Receive frame end
detected
Parity/MP bit
• Asynchronous mode
0:
1:
Short frame
• Bit synchronous mode
0:
1:
Parity error
• Asynchronous mode
0: No parity error detected
1: Parity error detected
Abort end frame
• Bit synchronous mode
0: Normal end of frame
1: Frame with abort end detected
Parity/MP bit = 0
Parity/MP bit = 1
Normal end of frame
Short frame detected
R/W
EOM
—
7
0
SHRT
R/W
PMP
—
6
0
R/W
ABT
PE
—
5
0
Framning error
• Asynchronous mode
0:
1:
Residual bit frame
•
0:
1:
Rev. 0, 07/98, page 405 of 453
Bit synchronous
mode
Overrun error
0: No overrun error detected
1: Overrun error detected
No framing error
detected
Framing error
detected
Normal end of
frame
Residual bit frame
detected
FRME
R/W
RBIT
—
4
0
OVRN
R/W
3
0
CRC error
• Byte/Bit synchronous mode
0: No CRC error detected
1: CRC error detected
CRCE
R/W
—
2
0
—
—
1
0
—
—
0
0