Справочник Пользователя для Motorola MC68HC908MR16
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Serial Communications Interface Module (SCI)
I/O Registers
MC68HC908MR16/MC68HC908MR32 — Rev. 4.0
Advance Information
MOTOROLA
Serial Communications Interface Module (SCI)
295
14.8.2 SCI Control Register 2
SCI control register 2 (SCC2):
•
Enables these CPU interrupt requests:
–
Enables the SCTE bit to generate transmitter CPU interrupt
requests
requests
–
Enables the TC bit to generate transmitter CPU interrupt
requests
requests
–
Enables the SCRF bit to generate receiver CPU interrupt
requests
requests
–
Enables the IDLE bit to generate receiver CPU interrupt
requests
requests
•
Enables the transmitter
•
Enables the receiver
•
Enables SCI wakeup
•
Transmits SCI break characters
Table 14-4. Character Format Selection
Control Bits
Character Format
M
PEN:PTY
Start
Bits
Data
Bits
Parity
Stop
Bits
Character
Length
0
0X
1
8
None
1
10 bits
1
0X
1
9
None
1
11 bits
0
10
1
7
Even
1
10 bits
0
11
1
7
Odd
1
10 bits
1
10
1
8
Even
1
11 bits
1
11
1
8
Odd
1
11 bits