ST7MC2M9 STMicroelectronics, ST7MC2M9 Datasheet - Page 120

• Manufacturer Part Number: ST7MC2M9
• Description: 8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC,BRUSHLESS MOTOR CONTROL, 5 TIMERS, SPI, LINSCI(TM)
• Manufacturer: STMicroelectronics

Specifications of ST7MC2M9

• Hdflash Endurance: 100 cycles, data retention
• Clock Sources: crystal/ceramic resonator oscillators and by-pass for external clock, clock security system.
• Four Power Saving Modes: Halt, Active-Halt, Wait and Slow
• Main Clock Controller With: Real time base, Beep and Clock-out capabilities
• Two 16-bit Timers With: 2 input captures, 2 output compares, external clock input, PWM and pulse generator modes
• 8-bit Pwm Auto-reload Timer With: 2 input captures, 4 PWM outputs, output compare and time base interrupt, external clock with event detector

ST7MC1xx/ST7MC2xx
LINSCI™ SERIAL COMMUNICATION INTERFACE (SCI Mode) (cont’d)
BAUD RATE REGISTER (SCIBRR)
Read/Write
Reset Value: 0000 0000 (00h)
Note: When LIN slave mode is disabled, the SCI-
BRR register controls the conventional baud rate
generator.
Bits 7:6 = SCP[1:0] First SCI Prescaler
These 2 prescaling bits allow several standard
clock division ranges:
Bits 5:3 = SCT[2:0] SCI Transmitter rate divisor
These 3 bits, in conjunction with the SCP1 and
SCP0 bits define the total division applied to the
bus clock to yield the transmit rate clock in conven-
tional Baud Rate Generator mode.
120/309
1
SCP1
7
PR Prescaling factor
SCP0
13
SCT2
1
3
4
SCT1
SCT0
SCP1
SCR2 SCR1 SCR0
0
1
SCP0
0
1
0
1
0
Bits 2:0 = SCR[2:0] SCI Receiver rate divider
These 3 bits, in conjunction with the SCP[1:0] bits
define the total division applied to the bus clock to
yield the receive rate clock in conventional Baud
Rate Generator mode.
RR dividing factor
TR dividing factor
128
128
16
32
64
16
32
64
1
2
4
8
1
2
4
8
SCR2
SCT2
0
1
0
1
SCR1
SCT1
0
1
0
1
0
1
0
1
SCR0
SCT0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1