MC908AB32CFUE Datasheet, PDF (264/392 Pages) Freescale Semiconductor, Inc – Microcontrollers

Serial Communications Interface
PTY — Parity Bit
This read/write bit determines whether the SCI generates and checks
for odd parity or even parity. (See Table 15-5.) Reset clears the PTY
bit.
1 = Odd parity
0 = Even parity
NOTE: Changing the PTY bit in the middle of a transmission or reception can
generate a parity error.
Table 15-5. 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
15.9.2 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
Technical Data
264
MC68HC908AB32 — Rev. 1.1
Serial Communications Interface Module (SCI)
Freescale Semiconductor