参数资料
型号: ST72P63BE4M1
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO24
封装: 0.300 INCH, ROHS COMPLIANT, PLASTIC, SOP-24
文件页数: 138/145页
文件大小: 2984K
代理商: ST72P63BE4M1
ST7263BDx ST7263BHx ST7263BKx ST7263BE
92/145
IC bus interface (Cont’d)
12.5.5 Low power modes
12.5.6 Interrupts
Figure 46. Event flags and interrupt generation
The IC interrupt events are connected to the
same interrupt vector (see Interrupts chapter).
They generate an interrupt if the corresponding
Enable Control Bit is set and the I-bit in the CC
register is reset (RIM instruction).
Mode
Description
Wait
No effect on IC interface.
IC interrupts cause the device to exit from Wait mode.
Halt
IC registers are frozen.
In Halt mode, the IC interface is inactive and does not acknowledge data on the bus. The IC
interface resumes operation when the MCU is woken up by an interrupt with “exit from Halt
mode” capability.
Interrupt event
Event
flag
Enable
control
bit
Exit
from
Wait
Exit
from
Halt
End of byte Transfer event
BTF
ITE
Yes
No
Address Matched event (Slave mode)
ADSL
Yes
No
Start Bit Generation event (Master mode)
SB
Yes
No
Acknowledge Failure event
AF
Yes
No
Stop Detection event (Slave mode)
STOPF
Yes
No
Arbitration Lost event (Multimaster configuration)
ARLO
Yes
No
Bus Error event
BERR
Yes
No
BTF
ADSL
SB
AF
STOPF
ARLO
BERR
EVF
INTERRUPT
ITE
*
* EVF can also be set by EV6 or an error from the SR2 register.
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