ST7232AK2-Auto STMicroelectronics, ST7232AK2-Auto Datasheet - Page 117

• Manufacturer Part Number: ST7232AK2-Auto
• Description: 8-bit MCU for automotive, 16 Kbyte Flash, 10-bit ADC, 4 timers, SPI, SCI
• Manufacturer: STMicroelectronics

Specifications of ST7232AK2-Auto

• Hdflash Endurance: 100 cycles, data retention
• Clock Sources: crystal/ceramic resonator oscillators and bypass for external clock
• 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, PWM and pulse generator modes

ST7232Axx-Auto
10.5
10.5.1
10.5.2
Serial communications interface (SCI)
SPI register map and reset values
Table 43.
Introduction
The serial communications interface (SCI) offers a flexible means of full-duplex data
exchange with external equipment requiring an industry standard NRZ asynchronous serial
data format. The SCI offers a very wide range of baud rates using two baud rate generator
systems.
Main features
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●
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●
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●
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0021h
0022h
0023h
Addres (Hex.)
Full duplex, asynchronous communications
NRZ standard format (mark/space)
Dual baud rate generator systems
Independently programmable transmit and receive baud rates up to 500K baud
Programmable data word length (8 or 9 bits)
Receive buffer full, transmit buffer empty and end of transmission flags
Two receiver wake up modes:
–
–
Muting function for multiprocessor configurations
Separate enable bits for transmitter and receiver
Four error detection flags:
–
–
–
–
Five interrupt sources with flags:
–
–
–
–
–
Address bit (MSB)
Idle line
Overrun error
Noise error
Frame error
Parity error
Transmit data register empty
Transmission complete
Receive data register full
Idle line received
Overrun error detected
SPI register map and reset values
SPIDR
Reset value
SPICR
Reset value
SPICSR
Reset value
Register label
SPIE
MSB
SPIF
7
0
0
x
WCOL
SPE
6
x
0
0
SPR2
OVR
5
0
0
x
MODF
MSTR
4
x
0
0
CPOL
3
x
x
0
CPHA
SOD
On-chip peripherals
2
x
x
0
SPR1
SSM
1
x
x
0
117/201
SPR0
LSB
SSI
0
x
x
0