CLK(R/X)
D(R/X)
FS(R/X)
A1
B7
B6
B5
B4
B3
B2
B1
B0
A0
C7
C6
C5
Preliminary
Architecture
www.ti.com
11.2.1.4.2 Single-phase Frame Example
shows an example of a single-phase data frame containing one 8-bit word. Because the
transfer is configured for one data bit delay, the data on the McBSP.DX and McBSP.DR pins are
available one clock cycle after FS(R/X) goes active. The figure makes the following assumptions:
•
RPHASE (RCR2_REG[15]) and XPHASE (XCR2_REG[15]) = 0: Single-phase frame
•
RFRLEN1 (RCR1_REG[14:8]) and XFRLEN1 (XCR1_REG[14:8]) = 0: 1 word per frame
•
RWDLEN1 (RCR1_REG[7:5]) and XWDLEN1 (XCR1_REG[7:5]) = 0: 8-bit word length
•
RFRLEN2 (RCR2_REG[14:8]) and XWDLEN2 (XCR2_REG[14:8]) are ignored
•
CLKRP (PCR_REG[0]) and CLKXP (PCR_REG[1]) = 0: Receive data clocked on falling edge;
transmit data clocked on rising edge
•
FSRP (PCR_REG[2]) and FSXP (PCR_REG[3]) = 0: Active–high frame–synchronization signals
•
RDATDLY (RCR2_REG[1:0]) and XDARDLY (XCR2_REG[1:0]) = 01b: 1–bit data delay
Figure 11-5. Single-Phase Frame for a McBSP Data Transfer
11.2.1.4.3 Dual-Phase Frame Example
shows an example of a frame where the first phase consists of one word of 16 bits,
followed by a second phase of one word of 8 bits. The entire bit stream in the frame is contiguous.
There are no gaps between words/phases.
Figure 11-6. Dual-Phase Frame for a McBSP Data Transfer
1130
Multichannel Buffered Serial Port (McBSP)
SPRUGX9 – 15 April 2011
© 2011, Texas Instruments Incorporated
Содержание TMS320C6A816 Series
Страница 2: ...Preliminary 2 SPRUGX9 15 April 2011 Submit Documentation Feedback 2011 Texas Instruments Incorporated...
Страница 92: ...92 Read This First SPRUGX9 15 April 2011 Submit Documentation Feedback 2011 Texas Instruments Incorporated...
Страница 1122: ...1122 Multichannel Audio Serial Port McASP SPRUGX9 15 April 2011 Submit Documentation Feedback 2011 Texas Instruments Incorporated...
Страница 1562: ...1562 Real Time Clock RTC SPRUGX9 15 April 2011 Submit Documentation Feedback 2011 Texas Instruments Incorporated...
Страница 1658: ...1658 Timers SPRUGX9 15 April 2011 Submit Documentation Feedback 2011 Texas Instruments Incorporated...
Страница 1750: ...1750 UART IrDA CIR Module SPRUGX9 15 April 2011 Submit Documentation Feedback 2011 Texas Instruments Incorporated...
Страница 1984: ...1984 Universal Serial Bus USB SPRUGX9 15 April 2011 Submit Documentation Feedback 2011 Texas Instruments Incorporated...