ST72C334N2B6 STMicroelectronics, ST72C334N2B6 Datasheet - Page 90
ST72C334N2B6
Manufacturer Part Number
ST72C334N2B6
Description
Microcontrollers (MCU) Flash 8K SPI/SCI
Manufacturer
STMicroelectronics
Datasheet
1.ST72C334N2T6.pdf
(126 pages)
Specifications of ST72C334N2B6
Data Bus Width
8 bit
Program Memory Type
Flash
Program Memory Size
8 KB
Data Ram Size
384 B
Interface Type
SCI, SPI
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
44
Number Of Timers
16 bit
Operating Supply Voltage
3.2 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
Package / Case
SDIP-56
Minimum Operating Temperature
- 40 C
On-chip Adc
8 bit
Lead Free Status / Rohs Status
No
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ST72334J/N, ST72314J/N, ST72124J
SERIAL COMMUNICATIONS INTERFACE (Cont’d)
6.6.5 Low Power Modes
6.6.6 Interrupts
The SCI interrupt events are connected to the
same interrupt vector (see Interrupts chapter).
90/125
Mode
WAIT
HALT
Transmit Data Register Empty
Transmission Complete
Received Data Ready to be Read
Overrrun Error Detected
Idle Line Detected
In Halt mode, the SCI stops transmitting/receiving until Halt mode is exited.
Description
No effect on SCI.
SCI interrupts cause the device to exit from Wait mode.
SCI registers are frozen.
Interrupt Event
These events generate an interrupt if the corre-
sponding Enable Control Bit is set and the I-bit in
the CC register is reset (RIM instruction).
Event
RDRF
TDRE
Flag
IDLE
OR
TC
Control
Enable
TCIE
RIE
ILIE
Bit
TIE
from
Wait
Exit
Yes
Yes
Yes
Yes
Yes
from
Halt
Exit
No
No
No
No
No
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