psf2115 ETC-unknow, psf2115 Datasheet - Page 176

• Manufacturer Part Number: psf2115
• Description: Isdn Adapter Circuit Ipac
• Manufacturer: ETC-unknow

The activities at both serial and CPU interface during frame transmission (supposed
frame length = 140 bytes) is shown in figure 81.
Figure 81
Semiconductor Group
Serial
Interface
IPAC
CPU
Interface
64 Bytes
Interrupt Driven Transmission Sequence Example
WR
...
XTF
XPR
64 Bytes
WR
...
64
Transmit Frame
176
Command
XTF
XPR
(140 Bytes)
12 Bytes
WR
...
Operational Description
XTF+XME
64
PSB 2115
PSF 2115
12
XPR
ITD09648
11.97