SAF82525 Infineon Technologies AG, SAF82525 Datasheet - Page 72

• Manufacturer Part Number: SAF82525
• Description: Data Communications ICs
• Manufacturer: Infineon Technologies AG

Figure 32
Interrupt Driven Data Transmission (Flow Diagram)
The activities at both serial and CPU interface during frame transmission (supposed frame
length = 70 bytes) is shown in figure 33.
Figure 33
Interrupt Driven Transmission Sequence Example
Semiconductor Group
Serial
Interface
HSCX
CPU
Interface
Command
XTF XIF
32
/
. . .
WR
Bytes
XTF
XPR
N
N
32 Bytes
. . .
WR
XTF XIF + XME
(up to 32 Bytes)
Pool Ready
Write Data
Command
32
Massage
to XFIFO
Transmit
START
/
End of
END
?
?
Y
Y
Command
Transmit
72
XTF
Frame (70 Bytes)
XPR
ITD00246
6
. . .
WR
Bytes
XFW Bit in STAR Register = 1
XPR Interrupt or
XTF + XME
32
SAB 82525
SAB 82526
SAF 82525
SAF 82526
6
XPR
ITD00247