L64704 LSI Logic Corporation, L64704 Datasheet - Page 44

• Manufacturer Part Number: L64704
• Description: Satellite Decoder Technical Manual 5/97
• Manufacturer: LSI Logic Corporation

3-12
APR
1
FS_UL_IE
D15
FS_LL_IE
The following register diagram shows the bit organization of SMR[15:8].
Descriptions of the fields follow the register diagram. The L64704 sets all
the bits in SMR[15:8] to zero after a software or a hardware reset.
FS_UL_IE
FS_LL_IE
CF_LLK_IE
L64704 Registers
D14
CF_LLK_IE
D13
Freq. Sweep Lower Limit Reached Interrupt Enable 9
Freq. Sweep Upper Limit Reached Interrupt Enable 8
The microcontroller sets FS_UL_IE to enable an interrupt
when the Frequency Sweep has reached its upper limit.
The L64704 always sets the FS_UL bit in STS[15:8]
when this condition occurs.
The microcontroller sets FS_LL_IE to enable an interrupt
when the Frequency Sweep has reached its lower limit.
The L64704 always sets the FS_LL bit in STS[15:8] when
this condition occurs.
Carrier Freq. Lock Lost Detect Interrupt Enable
The microcontroller sets CF_LLK_IE to enable an inter-
rupt when Carrier Frequency Lock Loss is detected
(CAR_LCF=0). The L64704 always sets the CF_LLK bit
in STS[15:8] when this condition occurs.
FS_UL_IE
0
1
FS_LL_IE
0
1
CF_LLK_IE Definition
0
1
CF_LK_IE CP_LLK_IE CP_LK_IE AFC_LLK_IE AFC_LK_IE
D12
Definition
Disable Interrupt for Frequency Sweep Upper
Limit Reached
Enable Interrupt for Frequency Sweep Upper
Limit Reached Detect
Definition
Disable Interrupt for Frequency Sweep Lower
Limit Reached Detect
Enable Interrupt for Frequency Sweep Lower
Limit Reached Detect
Disable Interrupt for Carrier Frequency Lock
Loss Detect
Enable Interrupt for Carrier Frequency Lock Loss
Detect
D11
D10
D9
D8
10