co2128-48li-3sp Connect One Ltd., co2128-48li-3sp Datasheet - Page 36

• Manufacturer Part Number: co2128-48li-3sp
• Description: Chip? Co2064, Co2128 And Co2144 Are Full-featured Programmable Ip Communication Controller? Chips That Act As Coprocessors To Offload Security And Ip Connectivity Tasks From Any Host Processor.
• Manufacturer: Connect One Ltd.

Connect One
Hardware Interface
6 Hardware Interface
6.1 Power Connection
iChip supports a single 3.3V supply mode. The internal regulator input is connected to the
3.3V source and its 1.2V output feeds VDDCORE and VDDPLL, as shown in Figure 6-1.
When ONREG=0, the internal power regulator is disabled and VDDCORE and VDDPLL need
to be connected to an external power supply of 1.2V. When ONREG=1, the internal power
regulator is enabled and a decoupling capacitor has to be connected to pin 5 (64PP), pin 7
(128PP), or pin D4 (144PP).
1.2V
Figure 6-1: iChip Power Connection
6.2 Crystal Connection
The typical crystal connection is illustrated in the figure below.
Figure 6-2: Crystal Connection
iChip CO2064/CO2128/CO2144 Data Sheet
Preliminary
6-1