GC3021A 3.3V MIXER AND CARRIER REMOVAL CHIP
SLWS137A
4.7
OUTPUT CONTROL REGISTERS
Registers 8, 9, 10 and 11 contain the four output format control words. Each register is identical.
OUTPUT_REGA controls output YA, OUTPUT_REGB controls output YB, OUTPUT_REGC controls output
YC and OUTPUT_REGD controls output YD. The suggested default is 1FFF.
ADDRESS 8:
ADDRESS 9:
ADDRESS 10:
ADDRESS 11:
OUTPUT_REGA
OUTPUT_REGB
OUTPUT_REGC
OUTPUT_REGD
BIT
TYPE
NAME
DESCRIPTION
0-11
R/W
R/W
MASK
12 Bit output mask. MASK is bitwise anded with the
output sample. Bit 0 is the LSB, bit 11 is the MSB.
12
OUTPUT_SEL
Selects which signal is output on this port. See
Table 2 in Section 2.11.
13
14
15
R/W
R/W
R/W
RND_8
RND_10
-
Round to 8 bits
Round to 10 bits
Unused
The RND_8 and RND_10 controls are used to round the 12 bit output values to 8 or 10 bits. Only
one control should be high.
Texas Instruments Incorporated
- 20 -
This document contains information which may be changed at any time without notice
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