DSP56303 FREESCALE [Freescale Semiconductor, Inc], DSP56303 Datasheet - Page 177

• Manufacturer Part Number: DSP56303
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

The SCI includes the GPIO functions described in Section 8.7, GPIO Signals and Registers, on
page 8-22. The next subsections describe the registers and their bits.
Freescale Semiconductor
Data Type: 1 = Address Byte
— SCI Transmit Data Address Register (STXA) in Figure 8-7
(SSFTD = 1)
(SSFTD = 1)
(SSFTD = 1)
(SSFTD = 1)
WDS2 WDS1 WDS0
WDS2 WDS1 WDS0
WDS2 WDS1 WDS0
WDS2 WDS1 WDS0
WDS2 WDS1 WDS0
(SSFTD = 1)
TX
TX
TX
TX
0
0
1
1
1
0 = Data Byte
TX
Mode 0
Mode 2
Mode 4
Mode 5
Mode 6
0
1
0
0
1
Start
Start
Start
Start
Figure 8-1. SCI Data Word Formats (SSFTD = 1), 1
0
0
0
1
0
D7
D7
D7
D7
D7
10-bit Asynchronous (1 Start, 8 Data, 1 Stop)
11-bit Asynchronous (1 Start, 8 Data, 1 Even Parity, 1 Stop)
11-bit Asynchronous (1 Start, 8 Data, 1 Odd Parity, 1 Stop)
8-bit Synchronous Data (Shift Register Mode)
11-bit Asynchronous Multidrop (1 Start, 8 Data, 1 Data Type, 1 Stop)
• Modes 1, 3, and 7 are reserved.
• D0 = LSB; D7 = MSB
• Data is transmitted and received LSB first if SSFTD = 0, or MSB first if SSFTD
D6
D6
D6
D6
D6
= 1
DSP56303 User’s Manual, Rev. 2
One Byte From Shift Register
D5
D5
D5
D5
D5
D4
D4
D4
D4
D4
D3
D3
D3
D3
D3
D2
D2
D2
D2
D2
D1
D1
D1
D1
D1
D0 or
D0 or
D0 or
Data
Type
Data
Type
Data
Type
D0
D0
Parity
Parity
Even
Odd
Data
Type
Stop
Bit
SCI Programming Model
Stop
Stop
Stop
Bit
Bit
Bit
8-9