wm9714l Wolfson Microelectronics plc, wm9714l Datasheet - Page 14

• Manufacturer Part Number: wm9714l
• Description: Ac?97 Audio Codec
• Manufacturer: Wolfson Microelectronics plc

WM9714L
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COLD RESET (ASYNCHRONOUS, RESETS REGISTER SETTINGS)
Figure 5 Cold Reset Timing
Note:
For correct operation SDATAOUT and SYNC must be held LOW for entire RESETB active
low period otherwise the device may enter test mode. See AC'97 specification or Wolfson
applications note WAN104 for more details.
WARM RESET (ASYNCHRONOUS, PRESERVES REGISTER SETTINGS)
Figure 6 Warm Reset Timing
RESETB active low pulse width
SYNC active high pulse width
SYNC inactive to BITCLK startup
delay
PARAMETER
PARAMETER
t
SYMBOL
SYMBOL
SYNC_HIGH
t
t
RST_LOW
RST2CLK
162.4
MIN
MIN
1.0
TYP
TYP
1.3
PP, Rev 3.2, October 2008
MAX
MAX
Pre-Production
UNIT
UNIT
µs
µs
ns
14