HD64570 HITACHI [Hitachi Semiconductor], HD64570 Datasheet - Page 429

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

Register
MSCI (Channel 0)
MSCI RX Clock Source
Register Channel 0:
RXS Channel 0
MSCI TX Clock Source
Register Channel 0:
TXS Channel 0
MSCI TX Ready Control
Register 0 Channel 0:
TRC0 Channel 0
CPU
Mode
0, 1
36H
37H
38H
Address
CPU
Mode
2, 3
37H
36H
39H
Remarks
Async
Byte sync
Bit sync HDLC
Read/Write
Initial value
Async
Byte sync
Bit sync HDLC
Read/Write
Initial value
Async
Byte sync
Bit sync HDLC
Read/Write
Initial value
Receive clock source
000:
010:
100:
110:
111:
Others:
Transmit clock source
000:
100:
110:
Others:
RXC line input
RXC line input (noise suppression)
Internal baud rate generator (BRG) output
ADPLL output
(BRG output for ADPLL operating clock)
ADPLL output
(RXC line input for ADPLL operating clock)
TXC line input
Internal baud rate generator (BRG) output
Receive clock
Reserved
Reserved
—
—
—
—
—
7
0
7
0
—
7
0
RXCS2
TXCS2
R/W
R/W
6
0
6
0
—
—
6
0
TXCS1
RXCS1
R/W
R/W
5
0
5
0
—
—
5
0
Rev. 0, 07/98, page 413 of 453
TXCS0
RXCS0
R/W
R/W
TRC04
R/W
4
0
4
0
4
0
TXBR3
RXBR3
R/W
R/W
TRC03 TRC02 TRC01 TRC00
3
0
R/W
3
0
TX ready control 0
3
0
TXBR2
RXBR2
R/W
R/W
2
0
R/W
Transmitter baud rate
• Clock division ratio
0000:
0001:
0010:
0011:
0100:
0101:
0110:
0111:
1000:
1001:
Others:
2
0
Receiver baud rate
• Clock division ratio
0000:
0001:
0010:
0011:
0100:
0101:
0110:
0111:
1000:
1001:
Others:
2
0
TXBR1
R/W
RXBR1
R/W
1/1
1/2
1/4
1/8
1/16
1/32
1/64
1/128
1/256
1/512
1
0
1/1
1/2
1/4
1/8
1/16
1/32
1/64
1/128
1/256
1/512
R/W
1
0
Reserved
1
0
Reserved
TXBR0
R/W
RXBR0
R/W
0
0
R/W
0
0
0
0