MSP 34x7G
PRELIMINARY DATA SHEET
6.3.5. Register MODE_REG
disabled. Only MSP 34x7D features are available; the
use of MODUS and STATUS register is not allowed.
The MSP 34x7G is reset to the normal mode by first
programming the MODUS register, followed by trans-
mitting a valid standard code to the STANDARD
SELECTION register.
Note: The use of this register is no longer recom-
mended. It should be used only in cases where soft-
ware compatibility to the MSP 34x7D is required.
Using the STANDARD SELECTION register together
with the MODUS register provides a more economic
way to program the MSP 34x7G.
The register ‘MODE_REG’ contains the control bits
determining the operation mode of the MSP 34x7G in
the MSP 34x7D Manual/Compatibility Mode; Table 6–
12 explains all bit positions.
As soon as this register is applied, the MSP 34x7G
works in the MSP 34x7D Manual/Compatibility
Mode. In this mode, BTSC, EIA-J, and FM-Radio are
Table 6–12: Control word ‘MODE_REG’; reset status: all bits are “0”
MODE_REG 00 83hex
Automatic setting by
STANDARD SELECT Register
Bit
[0]
[1]
Function
not used
Comment
Definition
2 - 5
0
8,A,B
9
0
X
0 : must be used
0
DCTR_TRI
Digital control out
0/1 tri-state
0 : active
1 : tri-state
X
X
[2]
[3]
[4]
[5]
[6]
not used
not used
not used
not used
NICAM
1 : recommended
0 : must be used
0 : must be used
1 : recommended
X
X
X
X
0
X
X
X
X
1
X
X
X
X
1
Mode of MSP-Ch1
Mode of MSP-Ch2
0 : FM
1 : Nicam
[7]
[8]
not used
FM AM
0 : must be used
0
0
0
0
0
1
0 : FM
1 : AM
[9]
HDEV
High Deviation Mode
(channel matrix must be
sound A)
0 : normal
1 : high deviation mode
0
0
0
[11:10]
[12]
not used
0 : must be used
0
0
0
0
0
0
MSP-Ch1 Gain
see also Table 6–14
see also Table 6–14
0 : Gain = 6 dB
1 : Gain = 0 dB
[13]
FIR1-Filter
Coeff. Set
0 : use FIR1
1 : use FIR2
1
0
0
[14]
[15]
not used
AM-Gain
0 : recommended
0
1
0
1
0
1
Gain for AM
Demodulation
0 : 0 dB (default. of MSPB)
1 : 12 dB (recommended)
X: not affected by
STANDARD SELECT Register
68
Micronas
MICRONAS [ MICRONAS ]
