HD64570 HITACHI [Hitachi Semiconductor], HD64570 Datasheet - Page 425

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

Register
MSCI (Channel 0)
MSCI Command Register
Channel 0: CMD
Channel 0
Not used
MSCI Mode Register 0
Channel 0: MD0
Channel 0
CPU
Mode
0, 1
2CH
2DH
2EH
Address
CPU
Mode
2, 3
2DH
2CH
2FH
Remarks
Protocol mode
000:
001:
010:
011:
100:
101:
110:
111:
Async
Byte sync
Bit sync HDLC
Read/Write
Initial value
Async
Byte sync
Bit sync HDLC
Read/Write
Initial value
• Transmit commands
000001:
000010:
000011:
000100:
000101:
000110:
000111:
001000:
001001:
Others:
Asynchronous mode
Byte-sync
mono-sync mode
Byte-sync
Bi-sync mode
Byte-sync external
synchronous mode
Bit-sync HDLC mode
Reserved
Reserved
Reserved
TX reset
TX enable
TX disable
TX CRC initialization
TX CRC calculation
exclusion
End-of-message
Abort transmission
MP bit on
TX buffer clear
Reserved
PRTCL2 PRTCL1 PRTCL0AUTO
R/W
7
0
—
—
—
7
*1
R/W
6
0
—
—
—
6
*1
Auto-enable
0:
1:
CRC code caluculation
•
0:
1:
R/W
Byte/Bit synchronous
CMD5
• Receive commands
010001:
010010:
010011:
010100:
010101:
010110:
010111:
011000:
Auto-enable reset
Auto-enable set
• Other commands
100001:
110001:
000000:
5
0
mode
Disable
Enable
—
W
5
Rev. 0, 07/98, page 409 of 453
R/W
CMD4
4
0
W
—
4
RX reset
RX enable
RX disable
RX CRC initialization
Message reject
Search MP bit
RX CRC calculation
exclusion
Forcing RX CRC
calculation
Channel reset
Enter search mode
No operation
Stop bit length
•
00:
01:
10:
11:
CRC calcuration
expression and
initial value
•
0X:
1X:
X0:
X1:
—
—
CMD3
3
0
W
—
Command
3
Asynchronous mode
Byte/Bit synchronous mode
1 bit
1.5 bits
2 bits
Reseved
CRC-16
CRC-CCITT
Initial value = all 0s
Initial value = all 1s
CRCCC
R/W
CMD2
—
2
0
W
—
2
STOP1
CRC1
R/W
CMD1
1
0
W
—
1
STOP0
CRC0
R/W
CMD0
0
0
W
—
0