C509-L_97 SIEMENS [Siemens Semiconductor Group], C509-L_97 Datasheet - Page 171

• Manufacturer Part Number: C509-L_97
• Description: 8-Bit CMOS Microcontroller
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Special Function Register S1RELH (Address BB H )
Special Function Register S1RELL (Address 9D H )
Bit
S1RELH.0-1
S1RELL.0-7
The baud rate in operating modes A and B can be determined by following formula:
At 12-MHz oscillator frequency a baud rate range from about 366 baud up to 750 kbaud is covered.
Semiconductor Group
Bit No.
BB H
9D H
Baud rate generator overflow rate = 2
Mode A, B baud rate =
MSB
.7
–
7
7
.6
Function
Reload value. Upper two bits of the timer reload value.
Reload value. Lower 8 bit of timer reload value.
6
6
–
.5
5
–
5
32 x (baud rate generator overflow rate) x 2
.4
4
–
4
with S1REL = S1RELH.1 – 0, S1RELL.7 – 0
10
6-93
– S1REL
oscillator frequency
.3
3
–
3
On-Chip Peripheral Components
.2
2
–
2
MSB
.1
1
1
Reset Value : XXXXXX11 B
LSB
LSB
.0
0
0
Reset Value : 00 H
S1P
S1RELL
S1RELH
1997-10-01
C509-L