hsp45116a Intersil Corporation, hsp45116a Datasheet - Page 6

• Manufacturer Part Number: hsp45116a
• Description: Numerically Controlled Oscillator/modulator
• Manufacturer: Intersil Corporation

Pin Descriptions
OUTMUX0-1
OEREXT
OEIEXT
RO0-19
DET0-1
IO0-19
NAME
OER
RND
OEI
94, 96, 97, 99-101,
115-118, 121-123,
126-130, 133-137
84-86, 88-91, 93,
110, 112, 113,
103-107, 109
NUMBER
71, 72
81, 82
74
76
78
77
75
(Continued)
6
TYPE
O
O
O
I
I
I
I
I
I
These inputs select the data to be output on RO0-19 and IO0-19.
Real Output Data Bus. R19 is the MSB. These three-state outputs are controlled by OER and
OEREXT. OUTMUX0-1 select the data output on the bus.
Imaginary Output Data Bus. I19 is the MSB. These three-state outputs are controlled by OEI and
OEIEXT. OUTMUX0-1 select the data output on the bus.
These output pins indicate the number of bits of growth in the accumulators. While PEAK is low,
these pins indicate the peak growth. The detector examines bits 15-18, real and imaginary
accumulator holding registers and bits 30-33 of the real and imaginary CMAC Holding Registers.
The bits indicate the largest growth of the four registers.
Three-state control for bits RO0-15. Outputs are enabled when the line is low.
Three-state control for bits RO16-19. Outputs are enabled when the line is low.
Three-state control for bits IO0-15. Outputs are enabled when the line is low.
Three-state control for bits IO16-19. Outputs are enabled when the line is low.
Round Enable. This input enables rounding of the output data precision from 9 to 20 bits. This
input is active “low”. This input must be tied either high or low.
OUT
MUX
1
0
0
1
1
OUT
MUX
DET 1
HSP45116A
0
0
1
0
1
0
0
1
1
Real CMAC
31-34
Real CMAC
31-34
Real ACC
16-19
Reserved
RO16-19
DET 0
0
1
0
1
Real CMAC
15-30
0, Real
CMAC 0-14
Real ACC
0-15
Reserved
RO0-15
DESCRIPTION
OF GROWTH ABOVE 2
NUMBER OF BITS
Imag CMAC
31-34
Imag CMAC
31-34
Imag ACC
16-19
Reserved
IO16-19
0
1
2
3
Imag CMAC
15-30
0, Imag
CMAC 0-14
Imag ACC
0-15
Reserved
IO0-15
o
May 7, 2007
FN4156.4