HD64570 HITACHI [Hitachi Semiconductor], HD64570 Datasheet - Page 426

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

Register
MSCI (Channel 0)
MSCI Mode Register 1
Channel 0: MD1
Channel 0
MSCI Mode Register 2
Channel 0: MD2
Channel 0
Rev. 0, 07/98, page 410 of 453
CPU
Mode
0, 1
2FH
30H
Address
CPU
Mode
2, 3
2EH
31H
Remarks
Async
Byte sync
Bit sync HDLC
Read/Write
Initial value
Async
Byte sync
Bit sync HDLC
Read/Write
Initial value
Bit rate
• Asynchronous mode
00:
01:
10:
11:
Address field check
• Bit synchronous mode
00:
01:
10:
11:
1/1 clock rate
1/16 clock rate
1/32 clock rate
1/64 clock rate
Address field no-check
Single address 1
Single address 2
Dual address
NRZ or FM select
•
0:
1:
Byte/Bit
synchronous
mode
NRZ
FM
ADDRS1 A DDRS0
BRATE1
NRZFM
R/W
R/W
—
7
0
—
7
0
BRATE0
R/W
CODE1
—
R/W
6
0
—
Transmission code
type
•
•
00:
01:
10:
11:
•
00:
01:
10:
11:
6
0
Byte/Bit synchronous
mode
NRZ
FM
Transmit character
length
• Asynchronous mode
00:
01:
10:
11:
TXCHR1
Recieve character
length
• Asynchronous mode
00:
01:
10:
11:
NRZ
NRZI
Reserved
Reserved
Manchester
FM1
FM0
Reserved
R/W
CODE0
—
R/W
5
0
—
8 bits/character
7 bits/character
6 bits/character
5 bits/character
5
0
8 bits/character
7 bits/character
6 bits/character
5 bits/character
TXCHR0
R/W
DRATE1
—
4
0
R/W
—
4
0
RXCHR1
R/W
—
DRATE0
ADPLL operating clock/bit rate
• Byte/Bit synchronous mode
00:
01:
10:
11:
3
0
R/W
—
3
0
x 8
x 16
x 32
Reserved
RXCHR0
R/W
Parity/multiprocessor
mode
• Asynchronous mode
00:
01:
10:
11:
—
2
0
—
—
No parity/MP bit
MP bit appended
(by command)
Even parity appended
and checked
Odd parity appended
and checked
2
0
Channel connection
00:
01:
10:
11:
PMPM1
R/W
—
1
0
CNCT1
Full duplex
communications
Auto echo
Reserved
Local loop back
R/W
1
0
PMPM0
R/W
—
0
0
CNCT0
R/W
0
0