C505_9708 SIEMENS [Siemens Semiconductor Group], C505_9708 Datasheet - Page 153

• Manufacturer Part Number: C505_9708
• Description: 8-Bit CMOS Microcontroller
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

The bit time is determined by the C505C clock period CLP (see AC characteristics), the Baud Rate
Prescaler, and the number of time quanta per bit:
TSEG1, TSEG2, and BRP are the programmed numerical values from the respective fields of the
Bit Timing Register and the bit CMOD in the SYSCON register (bit 3).
Semiconductor Group
bit time
t
t
t
t
Sync-Seg
TSeg1
TSeg2
q
= t
= 1
= ( TSEG1 + 1 )
= ( TSEG2 + 1 )
= (BRP + 1)
Sync-Seg
t
q
+ t
TSeg1
2
(1 - CMOD)
t
t
q
q
+ t
TSeg2
6-91
CLP
(= min. 4
(= min. 3
On-Chip Peripheral Components
t
t
q
q
)
)
C505C Only
1997-08-01