MSP3410D datasheet(28/83 Pages) MICRONAS

28 / 83 page

MSP 34x0D

PRELIMINARY DATA SHEET

Micronas

6.5.3. FIR Parameter

The following data values (see Table 6–10) are to be

transferred 8 bits at a time embedded LSB-bound in

a 16-bit word.

The loading sequences must be obeyed. To change a

coefficient set, the complete block FIR1 or FIR2 must

be transmitted.

Note: For compatibility with MSP 3410B, IMREG1 and

IMREG2 have to be transmitted. The value for

IMREG1 and IMREG2 is 004. Due to the partitioning to

8-bit units, the values 04hex, 40hex, and 00hex arise.

Table 6–9: Channel modes ‘MODE_REG [6, 8, 9]’

NICAM

Bit[6]

FM AM

Bit[8]

HDEV

Bit[9]

MSP Ch1

MSP Ch2

100NICAM

FM1

110NICAM

000FM2

FM1

001

−:−

High-Deviation FM

Table 6–10: Loading sequence for FIR coefficients

FIR1

0001hex (MSP Ch1: NICAM/FM2)

No.

Symbol Name

Bits

Value

NICAM/FM2_Coeff. (5)

see Table 6–11

NICAM/FM2_Coeff. (4)

NICAM/FM2_Coeff. (3)

NICAM/FM2_Coeff. (2)

NICAM/FM2_Coeff. (1)

NICAM/FM2_Coeff. (0)

FIR2

0005hex (MSP Ch2: FM1/AM )

No.

Symbol Name

Bits

Value

1IMREG1

04hex

IMREG1 / IMREG2

40hex

3IMREG2

00hex

FM/AM_Coef (5)

see Table 6–11

FM/AM_Coef (4)

FM/AM_Coef (3)

FM/AM_Coef (2)

FM/AM_Coef (1)

FM/AM_Coef (0)

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