HD64570 HITACHI [Hitachi Semiconductor], HD64570 Datasheet - Page 249

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

Byte synchronous/Bit synchronous mode: In byte or bit synchronous mode, the bit rate is
selected with the TMC7 TMC0 bits of TMC, the TXBR3 TXBR0 bits of TXS, and the RXBR3
RXBR0 bits of RXS.
Typical register set values and bit rates are listed in table 5.22.
Table 5.22 Register Set Values and Bit Rates in Byte Synchronous/Bit Synchronous Mode
Bit Rate
(bps)
38400
19200
Bit Rate
(bps)
38400
19200
TMC: Value of the TMC7 TMC0 bits of TMC
BR:
9600
4800
2400
1200
9600
4800
2400
1200
600
300
600
300
Value of the TXBR3 TXBR0 bits of TXS or the RXBR3 RXBR0 bits of RXS
TMC BR
32
32
32
32
32
32
32
32
TMC BR
60
60
60
60
60
60
60
60
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
2.4576
4.608
Deviation (%) TMC BR
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Deviation (%) TMC BR
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
40
40
40
40
40
40
40
40
64
64
64
64
64
64
64
64
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
f
f
4.9152
CLK
CLK
3.072
Deviation (%) TMC BR
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Deviation (%) TMC BR
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
(MHz)
(MHz)
Rev. 0, 07/98, page 233 of 453
52
52
52
52
52
52
52
52
78
78
78
78
78
78
78
78
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Deviation (%)
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.16
Deviation (%)
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.16
4
6