ST72361K6 STMicroelectronics, ST72361K6 Datasheet - Page 158

• Manufacturer Part Number: ST72361K6
• Description: 8-bit MCU
• Manufacturer: STMicroelectronics

Specifications of ST72361K6

• Hdflash Endurance: 100 cycles, data retention 40 years at 85°C
• 5 Power Saving Modes: Halt, Auto Wake Up From Halt, Active Halt, Wait and Slow

ST72361
LINSCI™ SERIAL COMMUNICATION INTERFACE (LIN Master Only) (Cont’d)
10.8.4.7 Parity control
Parity control (generation of parity bit in transmis-
sion and parity checking in reception) can be ena-
bled by setting the PCE bit in the SCICR1 register.
Depending on the frame length defined by the M
bit, the possible SCI frame formats are as listed in
Table
Table 25. Frame Formats
Legend:
SB: Start Bit
STB: Stop Bit
PB: Parity Bit
Note: In case of wake up by an address mark, the
MSB bit of the data is taken into account and not
the parity bit
Even parity: The parity bit is calculated to obtain
an even number of “1s” inside the frame made of
the 7 or 8 LSB bits (depending on whether M is
equal to 0 or 1) and the parity bit.
Example: data = 00110101; 4 bits set => parity bit
is 0 if even parity is selected (PS bit = 0).
Odd parity: The parity bit is calculated to obtain
an odd number of “1s” inside the frame made of
the 7 or 8 LSB bits (depending on whether M is
equal to 0 or 1) and the parity bit.
Example: data = 00110101; 4 bits set => parity bit
is 1 if odd parity is selected (PS bit = 1).
Transmission mode: If the PCE bit is set then the
MSB bit of the data written in the data register is
not transmitted but is changed by the parity bit.
Reception mode: If the PCE bit is set then the in-
terface checks if the received data byte has an
158/225
M bit
0
1
24.
PCE bit
1
0
0
1
| SB | 7-bit data | PB | STB |
| SB | 8-bit data PB | STB |
| SB | 8 bit data | STB |
| SB | 9-bit data | STB |
SCI frame
even number of “1s” if even parity is selected
(PS = 0) or an odd number of “1s” if odd parity is
selected (PS = 1). If the parity check fails, the PE
flag is set in the SCISR register and an interrupt is
generated if PIE is set in the SCICR1 register.
10.8.5 Low Power Modes
10.8.6 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
WAIT
HALT
Transmit Data Register
Empty
Transmission Com-
plete
Received Data Ready
to be Read
Overrun Error Detect-
ed
Idle Line Detected
Parity Error
Interrupt Event
Description
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/re-
ceiving until Halt mode is exited.
Event
TDRE
RDRF
Flag
IDLE
OR
TC
PE
Control
Enable
TCIE
ILIE
Bit
TIE
RIE
PIE
from
Wait
Exit
Yes
from
Exit
Halt
No