MMCCMB2107 Freescale, MMCCMB2107 Datasheet - Page 352

• Manufacturer Part Number: MMCCMB2107
• Manufacturer: Freescale

Specifications of MMCCMB2107

• Lead Free Status / RoHS Status: Not Compliant

Serial Communications Interface Modules (SCI1 and SCI2)
16.11.1 Frame Length
Technical Data
352
Serial Communications Interface Modules (SCI1 and SCI2)
The transmitter can generate either 10-bit or 11-bit frames. In SCICR1,
the M bit selects frame length, and the PE bit enables the parity function.
One data bit may be an address mark or an extra stop bit. All frames
begin with a start bit and end with one or two stop bits. When transmitting
9-bit data, bit T8 in SCI data register high (SCIDRH) is the ninth bit
(bit 8).
1. When implementing a multidrop network using the SCI, the address mark bit is used to
M Bit
Freescale Semiconductor, Inc.
designate subsequent data frames as a network address and not device data.
0
1
For More Information On This Product,
Table 16-5. Example 10-Bit and 11-Bit Frames
Length
Frame
10 bits
11 bits
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Start
Bit
1
1
1
1
1
1
1
1
1
1
Data
Bits
8
7
7
7
9
8
8
8
7
7
Parity
Yes
Yes
Yes
Bit
No
No
No
No
No
No
No
Address
Mark
Yes
Yes
Yes
MMC2107 – Rev. 2.0
No
No
No
No
No
No
No
(1)
MOTOROLA
Bit(s)
Stop
1
2
1
1
1
2
1
1
2
2