HFA3861AIN Intersil Corporation, HFA3861AIN Datasheet - Page 26

• Manufacturer Part Number: HFA3861AIN
• Description: Processor, Direct Sequence Spread Spectrum Base band Processor
• Manufacturer: Intersil Corporation

bit 0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit 7
Bits 6:4
Bit 3
Bit 2
Bit 1
Bit 0
Bit 7
Bits 6:0
Q A/D clock
0 = enable
1 = disable
Standby
1 = enable
0 = disable
SLEEPTX
1 = enable
0 = disable
SLEEP RX
1 = enable
0 = disable
SLEEP IQ
1 = enable
0 = disable
Analog TX Shut_down
1 = enable
0 = disable
Analog RX Shut_down
1 = enable
0 = disable
Analog Standby
1 = enable
0 = disable
Enable manual control of mixed signal power down signals using bits 1:7
1 = enable
0 = disable, normal operation (devices controlled by RESET, TX_PE, RX_PE)
DFS - select straight binary output of I/Q and RF A/D converters
I/Q DAC input control. This DAC gives an analog look at various internal digital signals that are suitable for analog
representation.
000 = normal (TX filter)
001 = down converter
010 = E/L integrator - upper 6 bits (Q) and AGC error (I)
011 = I/ Q A/D’s
100 = Bigger picker output. Upper 6 bits of FWT_I winner and FWT_Q winner
101 = CMF weights - upper 6 bits of all 16 CMF weights are circularly shifted with full scale negative sync pulse interleaved
between them
110 = TestBus pins (5:0) when configured as inputs, CR32(4), to both I and Q inputs
111 = Barker Correlator/ low rate samples - as selected by bit 7 CR32
Enable test bus into RX and TX DAC (if below bit is 0)
0 = normal
1 = enable
Enable RF A/D into RX DAC
0 = normal
1 = enable
VRbit1
VRbit0
R/W but not currently used internally, should be set to zero to ensure compatibility with future revisions.
AGC gain clip (7-bit value, 0-127) this is the attenuator accumulator upper limit. The lower limit is 0.
CONFIGURATION REGISTER 12 ADDRESS (18h) R/W A/D TEST MODES 1 (Continued)
26
CONFIGURATION REGISTER 13 ADDRESS (1Ah) R/W A/D TEST MODES 2
CONFIGURATION REGISTER 14 ADDRESS (1Ch) R/W A/D TEST MODES 3
CONFIGURATION REGISTER 15 ADDRESS (1Eh) R/W AGC CONTROL 1
HFA3861A