参数资料
型号: ST72621K4B1
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDIP32
封装: 0.400 INCH, LEAD FREE, SHRINK, PLASTIC, DIP-32
文件页数: 114/139页
文件大小: 1264K
代理商: ST72621K4B1
ST7262xxx
76/139
Doc ID 6996 Rev 5
SERIAL COMMUNICATIONS INTERFACE (Cont’d)
10.5.5 Low Power Modes
10.5.6 Interrupts
The SCI interrupt events are connected to the
same interrupt vector.
These events generate an interrupt if the corre-
sponding Enable Control Bit is set and the inter-
rupt mask in the CC register is reset (RIM instruc-
tion).
Mode
Description
WAIT
No effect on SCI.
SCI interrupts cause the device to exit from
Wait mode.
HALT
SCI registers are frozen.
In Halt mode, the SCI stops transmitting/re-
ceiving until Halt mode is exited.
Interrupt Event
Event
Flag
Enable
Control
Bit
Exit
from
Wait
Exit
from
Halt
Transmit Data Register
Empty
TDRE
TIE
Yes
No
Transmission Com-
plete
TC
TCIE
Yes
No
Received Data Ready
to be Read
RDRF
RIE
Yes
No
Overrun Error Detect-
ed
OR
Yes
No
Idle Line Detected
IDLE
ILIE
Yes
No
Parity Error
PE
PIE
Yes
No
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