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參數資料
| 型號： | AD28MSP02KN |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 消費家電 |
| 英文描述： | Voiceband Signal Port |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP24 |
| 封裝： | 0.300 INCH, PLASTIC, DIP-24 |
| 文件頁數： | 5/20頁 |
| 文件大?。?/td> | 330K |
| 代理商： | AD28MSP02KN |
AD28msp02
REV. 0
–5–
Note that the ADSP-2101’s SPORT0 communicates with the
AD28msp02’s SPORT while the ADSP-2101’s Flag Output
(FO) is used to signal the AD28msp02’s DATA/
CNTRL
input.
SPORT1 on the ADSP-2101 must be configured for flags and
interrupts in this system.
Figure 6 shows an ADSP-2101 assembly language program that
initializes the AD28msp02 and implements digital loopback
through the DSP processor.
SDO
SDOFS
SCLK
DATA/CNTRL
SDI
SDIFS
AD28msp02
DR0
RFS0
SCLK0
FO
DT0
TFS0
ADSP-2101
Figure 5. AD28msp02-to-ADSP-2101 Interface
{ This ADSP-2101 program initializes the AD28msp02 }
{ and executes a loopback, or talk-through, routine. }
.MODULE/ABS = 0/BOOT = 0 test1;
resetv:
JUMP begin;
RTI; RTI; RTI;
irq2v:
RTI; RTI; RTI; RTI;
st0x:
RTI; RTI; RTI; RTI;
sr0x:
ax0 = rx0;
tx0 = ax0;
RTI; RTI;
irq1v:
RTI; RTI; RTI; RTI;
irq0v:
RTI; RTI; RTI; RTI;
timerv:
RTI; RTI; RTI; RTI;
begin:
RESET FLAG OUT;
AX0 = 0x2A0F;
DM (0x3FF6) = AX0;
AX0 = 0x101F;
DM (0x3FFF) = AX0;
IMASK= 0x10;
AX0 = 0x30;
TX0 = AX0;
IDLE;
NOP;
IMASK= 0x08;
SET FLAG OUT;
wait:
JUMP wait;
NOP;
.ENDMOD;
{restart}
{IRQ2}
{SPORT0 Tx}
{SPORT0 Rx}
{irq1}
{irq0}
{Configure ADSP-2101 SPORT0 for }
{ ext. SCLK, ext. RFS, int. TFS }
{ Enable ADSP-2101 SPORT0, }
{ configure SPORT1 for Flag Out }
{ Write control word to take}
{ AD28msp02 out of powerdown }
{ Wait for receive interrupt }
Figure 6. ADSP-2101 Digital Loopback Routine
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