ST72324BK2 STMicroelectronics, ST72324BK2 Datasheet - Page 126

• Manufacturer Part Number: ST72324BK2
• Description: 5V RANGE 8-BIT MCU WITH 8 TO 32K FLASH/ROM, 10-BIT ADC, 4 TIMERS, SPI, SCI INTERFACE
• Manufacturer: STMicroelectronics

Specifications of ST72324BK2

• Hdflash Endurance: 1 kcycle at 55 °C, data retention 40 years at 85 °C
• Clock Sources: crystal/ceramic resonator oscillators, int. RC osc. and ext. clock input
• 4 Power Saving Modes: Slow, Wait, Active-halt, and Halt

On-chip peripherals
Table 68.
126/193
Symbol
f
f
Tx
Rx
Communication
frequency
Table 66.
SCI extended transmit prescaler division register (SCIETPR)
This register is used to set the External Prescaler rate division factor for the transmit circuit.
Table 67.
Baud rate selection
Parameter
SCIETPR
7:0
7:0
Bit
Bit
7
ERPR[7:0]
ETPR[7:0]
Name
Name
SCIERPR register description
SCIETPR register description
8 MHz
f
CPU
6
8-bit extended receive prescaler register
8-bit Extended Transmit Prescaler Register
The extended baud rate generator is activated when a value different from 00h
is stored in this register. Therefore the clock frequency issued from the 16
divider (see
register (in the range 1 to 255).
The extended baud rate generator is not used after a reset.
The extended baud rate generator is activated when a value different from 00h
is stored in this register. Therefore the clock frequency issued from the 16
divider (see
register (in the range 1 to 255).
The extended baud rate generator is not used after a reset.
Accuracy vs.
Standard
~0.16%
~0.79%
5
Figure
Figure
Conditions
59) is divided by the binary factor set in the SCIERPR
59) is divided by the binary factor set in the SCIETPR
Conventional mode
TR (or RR) = 128, PR = 13
TR (or RR) = 32, PR = 13
TR (or RR) = 16, PR = 13
TR (or RR) = 8, PR = 13
TR (or RR) = 4, PR = 13
TR (or RR) = 16, PR = 3
TR (or RR) = 2, PR =13
TR (or RR) = 1, PR = 13
Extended mode
ETPR (or ERPR) = 35,
TR (or RR)= 1, PR = 1
4
ETPR[7:0]
R/W
Prescaler
Function
Function
3
2
Standard
Reset value: 0000 0000 (00h)
10400
19200
38400
14400
1200
2400
4800
9600
300
1
~10416.67
~19230.77
~38461.54
~14285.71
Baud rate
~1201.92
~2403.84
~4807.69
~9615.38
~300.48
ST72324Bxx
0
Unit
Hz