MC908GR8CDWE Datasheet, PDF (255/408 Pages) Freescale Semiconductor, Inc – M68HC08 Microcontrollers

Freescale Semiconductor, Inc.
Serial Communications Interface (SCI)
I/O Registers
NOTE: Changing the PTY bit in the middle of a transmission or reception can
generate a parity error.
Table 18-5. Character Format Selection
Control Bits
M
PEN and
PTY
0
0X
1
0X
0
10
0
11
1
10
1
11
Start
Bits
1
1
1
1
1
1
Character Format
Data
Bits
Parity
Stop
Bits
8
None
1
9
None
1
7
Even
1
7
Odd
1
8
Even
1
8
Odd
1
Character
Length
10 bits
11 bits
10 bits
10 bits
11 bits
11 bits
18.9.2 SCI Control Register 2
SCI control register 2:
• Enables the following CPU interrupt requests:
– Enables the SCTE bit to generate transmitter CPU interrupt
requests
– Enables the TC bit to generate transmitter CPU interrupt
requests
– Enables the SCRF bit to generate receiver CPU interrupt
requests
– Enables the IDLE bit to generate receiver CPU interrupt
requests
• Enables the transmitter
• Enables the receiver
• Enables SCI wakeup
• Transmits SCI break characters
MC68HC908GR8 — Rev 4.0
MOTOROLA
Serial Communications Interface (SCI)
For More Information On This Product,
Go to: www.freescale.com
Technical Data
255