ST72321R9-Auto STMicroelectronics, ST72321R9-Auto Datasheet - Page 169

• Manufacturer Part Number: ST72321R9-Auto
• Description: 8-bit MCU for automotive with 60 Kbyte Flash, 10-bit ADC, timers, SPI, SCI and I2C interfaces
• Manufacturer: STMicroelectronics

Specifications of ST72321R9-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

ST72321xx-Auto
16.7.5
16.7.6
Table 86.
I
Table 87.
I
OAR1
DR
2
2
Bit
6:0 CC[6:0]
Bit
7:0
C data register (DR)
C own address register (OAR1)
ADD7
RW
7
7
Name
Name
D[7:0]
CCR register description (continued)
DR register description
7-bit clock divider
ADD6
8-bit Data Register
RW
These bits select the speed of the bus (f
not cleared when the interface is disabled (PE = 0).
Refer to
Note: The programmed f
These bits contain the byte to be received or transmitted on the bus.
Transmitter mode: Byte transmission start automatically when the software writes
in the DR register.
Receiver mode: The first data byte is received automatically in the DR register
using the least significant bit of the address.
Then, the following data bytes are received one by one after reading the DR
register.
6
6
Section 19: Electrical characteristics
ADD5
RW
5
5
Doc ID 13829 Rev 1
ADD4
SCL
RW
4
4
assumes no load on SCL and SDA lines.
D[7:0]
RW
Function
Function
ADD3
RW
3
3
SCL
) depending on the I
for the table of values.
ADD2
RW
2
2
Reset value: 0000 0000 (00h)
Reset value: 0000 0000 (00h)
I2C bus interface (I2C)
ADD1
RW
2
1
1
C mode. They are
ADD0
RW
169/243
0
0