ST72321AR6 STMicroelectronics, ST72321AR6 Datasheet - Page 114

• Manufacturer Part Number: ST72321AR6
• Description: 8-BIT MCU WITH NESTED INTERRUPTS, FLASH,10-BIT ADC, FIVE TIMERS, SPI, SCI, I2C INTERFACE
• Manufacturer: STMicroelectronics

Specifications of ST72321AR6

• Hdflash Endurance: 100 cycles, data retention
• Clock Sources: crystal/ceramic resonator oscillators, internal RC oscillator, clock security system 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

ST72321Rx ST72321ARx ST72321Jx
SERIAL COMMUNICATION INTERFACE (Cont’d)
Table 23. SCI Register Map and Reset Values
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Address
(Hex.)
0050h
0051h
0052h
0053h
0054h
0055h
0057h
SCISR
Reset Value
SCIDR
Reset Value
SCIBRR
Reset Value
SCICR1
Reset Value
SCICR2
Reset Value
SCIERPR
Reset Value
SCIPETPR
Reset Value
Register
Label
TDRE
SCP1
MSB
MSB
MSB
TIE
R8
7
1
x
0
x
0
0
0
SCP0
TCIE
TC
T8
6
1
x
0
0
0
0
0
RDRF
SCT2
SCID
RIE
5
0
0
0
0
0
0
x
SCT1
IDLE
ILIE
M
4
0
x
0
0
0
0
0
WAKE
SCT0
OVR
TE
3
0
0
0
0
0
0
x
SCR2
PCE
RE
NF
2
0
0
0
0
0
x
0
SCR1
RWU
PS
FE
1
0
x
0
0
0
0
0
SCR0
SBK
LSB
LSB
LSB
PIE
PE
0
0
x
0
0
0
0
0