ST7260E1 STMicroelectronics, ST7260E1 Datasheet - Page 81

• Manufacturer Part Number: ST7260E1
• Description: LOW SPEED USB 8-BIT MCU FAMILY WITH UP TO 8K FLASH/ROM AND SERIAL COMMUNICATION INTERFACE (SCI)
• Manufacturer: STMicroelectronics

Specifications of ST7260E1

• 4 Or 8 Kbytes Program Memory: high density Flash (HDFlash), or FastROM with readout and write protection

ST7260xx
13.2.3
13.2.4
Figure 40. Bit sampling in reception mode
Low power modes
Table 36.
Interrupts
The SCI interrupt events are connected to the same interrupt vector.
These events generate an interrupt if the corresponding Enable Control bit is set and the
interrupt mask in the CC register is reset (RIM instruction).
Table 37.
Transmit data register empty
Transmission complete
Received data ready to be read
Overrun error detected
Idle line detected
Parity error
Mode
Wait
Halt
RDI LINE
Sample
clock
Interrupt event
No effect on SCI.
SCI interrupts cause the device to exit from Wait mode.
SCI registers are frozen.
In Halt mode, the SCI stops transmitting/receiving until Halt mode is exited.
Effect of low power modes on SCI
SCI interrupt control/wake-up capability
1
2
3
4
7/16
Event flag Enable control bit Exit from Wait
RDRF
TDRE
IDLE
OR
TC
PE
5
6
One bit time
7
Description
sampled values
8
TCIE
ILIE
RIE
PIE
TIE
Serial communications interface (SCI)
9
10
11
12
Yes
Yes
Yes
Yes
Yes
Yes
6/16
7/16
13
14
15
Exit from Halt
16
No
No
No
No
No
No
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