wm8953 Wolfson Microelectronics plc, wm8953 Datasheet - Page 89

• Manufacturer Part Number: wm8953
• Description: Low Power Stereo Adc With Pll And Tdm Interface Low Power Stereo Adc With Pll And Tdm Interface
• Manufacturer: Wolfson Microelectronics plc

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Production Data
R19 (13h)
R20 (14h)
GPIO3 and
GPIO4
REGISTER
ADDRESS
8
7:0
15:0
15
14
13
12
11:8
7
6
5
4
BIT
PLL_LCK
(rr)
GPIO_STATUS
[7:0]
(rr)
GPIO4_DEB_ENA
GPIO4_IRQ_ENA
GPIO4_PU
GPIO4_PD
GPIO4_SEL
[3:0]
GPIO3_DEB_ENA
GPIO3_IRQ_ENA
GPIO3_PU
GPIO3_PD
LABEL
Read or
Reset
Read or
Reset
1000h
0b
0b
0b
1b
0000b
0b
0b
0b
1b
DEFAULT
PLL Lock status
Read-
0 = PLL NOT locked
1 = PLL locked
Write-
1 = Reset PLL_LCK latch
GPIO and GPI Input Pin Status
GPIO_STATUS[7] = GPI8 pin status
GPIO_STATUS[6] = GPI7 pin status
GPIO_STATUS[5] = Reserved
GPIO_STATUS[4] = GPIO5 pin status
GPIO_STATUS[3] = GPIO4 pin status
GPIO_STATUS[2] = GPIO3 pin status
GPIO_STATUS[1] = Reserved
GPIO_STATUS[0] = Reserved
Reserved - Do Not Change
GPIO4 Input De-Bounce
0 = disabled (Not de-bounced)
1 = enabled (Requires MCLK input and TOCLK_ENA=1)
GPIO4 IRQ Enable
0 = disabled
1 = enabled (GPIO4 input will generate IRQ)
GPIO4 Pull-Up Resistor Enable
0 = Pull-up disabled
1 = Pull-up enabled (Approx 150kΩ)
GPIO4 Pull-Down Resistor Enable
0 = Pull-down disabled
1 = Pull-down enabled (Approx 150kΩ)
GPIO4 Function Select
0000 = Input pin
0001 = Clock output (f=SYSCLK/OPCLKDIV)
0010 = Logic '0'
0011 = Logic '1'
0100 = PLL Lock output
0101 = Temperature OK output
0110 = SDOUT data output
0111 = IRQ output
1000 = MIC Detect
1001 = MIC Short Circuit Detect
1010 to 1111 = Reserved
GPIO3 Input De-Bounce
0 = disabled (Not de-bounced)
1 = enabled (Requires MCLK input and TOCLK_ENA=1)
GPIO3 IRQ Enable
0 = disabled
1 = enabled (GPIO3 input will generate IRQ)
GPIO3 Pull-Up Resistor Enable
0 = Pull-up disabled
1 = Pull-up enabled (Approx 150kΩ)
GPIO3 Pull-Down Resistor Enable
0 = Pull-down disabled
1 = Pull-down enabled (Approx 150kΩ)
DESCRIPTION
PD, January 2009, Rev 4.0
WM8953
89