HT37B90/HT37B70/HT37B50/HT37B30
BRGR
Decimal
Integer
Prescaler
Bit7
1
Bit6
1
Bit5
0
Bit4
1
Bit3
1
Bit2
1
Bit1
0
Bit0
1
23
44
58
39
48
18
29
11
26
22
38
47
10
25
46
9
1
1
1
1
1
1
0
1
1
1
0
0
0
0
1
1
1
1
1
0
0
0
1
1
1
1
0
1
0
0
1
1
1
1
1
1
0
0
1
1
1
1
0
0
1
0
1
1
1
1
1
0
1
0
1
1
1
1
0
1
1
0
1
1
1
1
1
1
1
0
1
1
1
1
0
0
0
1
1
1
1
1
1
0
0
1
1
1
1
1
0
1
0
1
1
1
1
1
1
1
0
1
1
1
1
1
0
0
1
1
1
1
1
1
1
0
1
1
1
1
1
1
0
1
1
1
1
1
8
1
1
1
1
1
1
1
1
7
0
0
1
1
1
1
1
1
7.75
7.25
7.5
0
1
1
1
1
1
1
1
1
0
1
1
1
1
1
1
BRGR Baud Rate Prescaler Table
Note: Baud Rate: 31.25kHz= fOSC/(prescaler´32)
For HT37P00
Bit7
1
Bit6
1
Bit5
0
Bit4
1
Bit3
1
Bit2
1
Bit1
1
Bit0
fOSC
Baud Rate
31.25kHz
31.25kHz
31.25kHz
31.25kHz
1
1
1
1
8MHz
11.059MHz
12.8MHz
16MHz
1
1
1
0
1
0
1
0
0
0
1
0
1
0
1
1
0
0
1
1
0
UART Control Description
UART interface 3 pins: Mout , Min , Mth.
·
·
·
Mout: transmit data output pin
Min: receiver data input pin
Mth: go through output pin
Note: Mout is hi-state when UART function initialized or finished to transmit.
Rev. 1.00
62
June 22, 2017