ST72321BR9 STMicroelectronics, ST72321BR9 Datasheet - Page 127
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ST72321BR9
Manufacturer Part Number
ST72321BR9
Description
8-bit MCU
Manufacturer
STMicroelectronics
Datasheet
1.ST72321BJ6.pdf
(187 pages)
Specifications of ST72321BR9
Hdflash Endurance
100 cycles, data retention
Clock Sources
crystal/ceramic resonator oscillators, internal RC oscillator 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, external clock input on one timer, 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
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I²C BUS INTERFACE (Cont’d)
Table 24. I
Address
001Ch
001Dh
001Ah
001Bh
001Eh
(Hex.)
0018h
0019h
2
I2CCR
Reset Value
I2CSR1
Reset Value
I2CSR2
Reset Value
I2CCCR
Reset Value
I2COAR1
Reset Value
I2COAR2
Reset Value
I2CDR
Reset Value
C Register Map and Reset Values
Register
Label
FM/SM
ADD7
MSB
EVF
FR1
7
0
0
0
0
0
0
0
ADD10
ADD6
CC6
FR0
ST72321BRx, ST72321BARx ST72321BJx, ST72321BKx
6
0
0
0
0
0
1
0
ADD5
TRA
CC5
PE
5
0
0
0
0
0
0
0
ENGC
BUSY
ADD4
CC4
AF
4
0
0
0
0
0
0
0
START
STOPF
ADD3
CC3
BTF
3
0
0
0
0
0
0
0
ARLO
ADD2
ADD9
ADSL
ACK
CC2
2
0
0
0
0
0
0
0
STOP
BERR
ADD1
ADD8
M/SL
CC1
1
0
0
0
0
0
0
0
GCAL
ADD0
CC0
127/187
LSB
ITE
SB
0
0
0
0
0
0
0
0
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