Sci data word formats (ssftd = 1), 1 -10, Figure 8-1. sci data word formats (ssftd = 1), 1 – Motorola DSP56301 User Manual
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SCI Programming Model
8
-10
DSP56301 User’s Manual
Figure 8-1. SCI Data Word Formats (SSFTD = 1), 1
Mode 0
8-bit Synchronous Data (Shift Register Mode)
TX
(SSFTD = 1)
One Byte From Shift Register
Mode 2
10-bit Asynchronous (1 Start, 8 Data, 1 Stop)
TX
(SSFTD = 1)
Start
Bit
Stop
Bit
Mode 4
11-bit Asynchronous (1 Start, 8 Data, 1 Even Parity, 1 Stop)
TX
(SSFTD = 1)
Start
Bit
Stop
Bit
Even
Parity
Mode 5
11-bit Asynchronous (1 Start, 8 Data, 1 Odd Parity, 1 Stop)
TX
(SSFTD = 1)
Start
Bit
D0 or
Data
Type
Stop
Bit
Odd
Parity
Mode 6
11-bit Asynchronous Multidrop (1 Start, 8 Data, 1 Data Type, 1 Stop)
TX
(SSFTD = 1)
Start
Bit
Stop
Bit
Data
Type
D7
D6
D5
D4
D3
D2
D1
D0
WDS2 WDS1 WDS0
0
0
0
Note: 1.Modes 1, 3, and 7 are reserved.
2. D0 = LSB; D7 = MSB
3. Data is transmitted and received LSB first if SSFTD = 0, or MSB first if
SSFTD = 1
0 = Data Byte
Data Type: 1 = Address Byte
D0 or
Data
Type
D7
D6
D5
D4
D3
D2
D1
D7
D6
D5
D4
D3
D2
D1
D0 or
Data
Type
D7
D6
D5
D4
D3
D2
D1
D7
D6
D5
D4
D3
D2
D1
D0
WDS2 WDS1 WDS0
0
1
0
WDS2 WDS1 WDS0
1
0
0
WDS2 WDS1 WDS0
1
0
1
WDS2 WDS1 WDS0
1
1
0