TMS320C31, TMS320LC31

DIGITAL SIGNAL PROCESSORS

SPRS035B – MARCH 1996 – REVISED JANUARY 1999

38

POST OFFICE BOX 1443

data-rate timing modes (continued)

CLKX/R

FSX(INT)

FSX(EXT)

DX

FSR

DR

62

65

64

63

60

61

59

68

67

66

Bit 0

Bit

n-2

Bit

n-3

Bit

n-2

Bit

n-3

Bit

n-1

Bit

n-1

NOTES: A. Timing diagrams show operation with CLKXP = CLKRP = FSXP = FSRP = 0.

B. Timing diagrams depend on the length of the serial-port word, where n = 8, 16, 24, or 32 bits, respectively.

C. The timings that are not specified expressly for the variable data-rate mode are the same as those that are specified for the fixed

data-rate mode.

Figure 26. Timing for Variable Data-Rate Mode