10.2.8.2 IGLOO® and ProASIC® 3 Static PLL I/O Description
The following table lists the I/O description of a IGLOO and ProASIC 3 Static PLL.
| Name | Size | Type | Required/ Optional | Function |
|---|---|---|---|---|
| GLA | 1 | Output | Required | Primary clock output |
| CLKA | 1 | Input | Required | Reference clock |
| POWERDOWN | 1 | Input | Required | Power Down Signal. A low on this signal turns off the PLL |
| LOCK | 1 | Output | Required | PLL lock |
| EXTFB | 1 | Input | Optional | External feedback |
| GLB | 1 | Output | Optional | Global Output for Secondary1 Clock |
| YB | 1 | Output | Optional | Core Output for Secondary1 Clock |
| GLC | 1 | Output | Optional | Global Output for Secondary2 Clock |
| YC | 1 | Output | Optional | Core Output for Secondary2 Clock |