HD64570F Renesas Electronics America, HD64570F Datasheet - Page 353

• Manufacturer Part Number: HD64570F
• Description: IC SCA SRL COMM ADAPTER 88QFP
• Manufacturer: Renesas Electronics America

Specifications of HD64570F

• Applications: ISDN
• Interface: Serial
• Voltage - Supply: 4.5 V ~ 5.5 V
• Package / Case: 88-QFP
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Reception Processing Routine: An example of a reception processing routine is given in
figure 9.6.
9.2
9.2.1
A typical system configuration incorporating the SCA is shown in figure 9.7.
Note: An interrupt is also generated when the DMAC completes reception of a frame.
Application Circuits
System Configuration Example
Clear interrupt source bit
Analyze interrupt source
Read ST1 and ST2
Figure 9.6 RXINT Interrupt Processing Routine (using HD64180)
issue EI instruction
Process interrupt,
Return
Start
Abort or idle
detection
ST1:
ST2:
Status register 1
Status register 2
Rev. 0, 07/98, page 337 of 453