WM9714L_06 WOLFSON [Wolfson Microelectronics plc], WM9714L_06 Datasheet - Page 70

• Manufacturer Part Number: WM9714L_06
• Description: AC 97 Audio CODEC
• Manufacturer: WOLFSON [Wolfson Microelectronics plc]

WM9714L
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COLD RESET (ASYNCHRONOUS, RESETS REGISTER SETTINGS)
Figure 24 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 25 Warm Reset Timing
RESETB active low pulse width
RESETB inactive to BITCLK startup
delay
SYNC active high pulse width
SYNC inactive to BITCLK startup
delay
RESETB
BITCLK
PARAMETER
PARAMETER
t
RST_LOW
t
SYMBOL
SYMBOL
SYNC_HIGH
t
t
t
RST_LOW
RST2CLK
RST2CLK
t
RST2CLK
162.8
162.4
MIN
MIN
1.0
TYP
TYP
1.3
PP Rev 3.0 June 2006
MAX
MAX
Pre-Production
UNIT
UNIT
ns
ns
s
s
70