Broadcom BCM5722 - Figure 83: GPIO Hold Condition

BCM5722 Programmer’s Guide
10/15/07
Broadcom Corporation
Page 531 GPIO Hold Condition Document 5722-PG101-R
GPIO HOLD CONDITION
Figure 83 shows the BCM5722 Ethernet controller GPIO hold condition. The GPIO pins hold their current output until the
rising edge of reset. If the GPIO pins were tristated before the falling edge of RST
, the pins will remain tri-stated. After the
rising edge of reset, the GPIO pins will tri-state.
Figure 83: GPIO Hold Condition
BCM57XX GPIO Trista
te
RST
1 ms min
Power
Good
100 ms min
BCM57XX GPIO Hold Condition
BCM57XX GPIO
Pins Tristated
B
CM57XX GPIO Output Hold
Until Rising Edge of RST