ST72321AR6-Auto STMicroelectronics, ST72321AR6-Auto Datasheet - Page 134

• Manufacturer Part Number: ST72321AR6-Auto
• Description: 8-bit MCU for automotive with 32 Kbyte Flash, 10-bit ADC, timers, SPI, SCI and I2C interfaces
• Manufacturer: STMicroelectronics

Specifications of ST72321AR6-Auto

• Hdflash Endurance: 100 cycles, data retention 20 years
• Clock Sources: crystal/ceramic resonator oscillators, internal RC oscillator and bypass for external clock
• 4 Power Saving Modes: Halt, Active Halt, Wait and Slow

Serial peripheral interface (SPI)
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A read to the SPIDR register returns the value located in the buffer and not the content of
the shift register (see
Table 69.
Address
(Hex.)
0021h
0022h
0023h
Warning:
SPI register map and reset values
SPIDR
Reset value
SPICR
Reset value
SPICSR
Reset value
Register
label
A write to the SPIDR register places data directly into the
shift register for transmission.
Figure
SPIE
SPIF
MSB
55).
7
x
0
0
Doc ID 13829 Rev 1
WCOL
SPE
6
x
0
0
SPR2
OVR
5
x
0
0
MODF
MSTR
4
0
0
x
CPOL
3
0
x
x
CPHA
SOD
2
0
x
x
ST72321xx-Auto
SPR1
SSM
1
x
x
0
SPR0
LSB
SSI
0
x
x
0