参数资料
型号: ADAU1461WBCPZ-R7
厂商: Analog Devices Inc
文件页数: 75/88页
文件大小: 0K
描述: IC SIGMADSP 24BIT 96KHZ PLL 32
标准包装: 1,500
系列: SigmaDSP®
类型: 音频处理器
应用: 车载音频
安装类型: 表面贴装
封装/外壳: 32-VFQFN 裸露焊盘,CSP
供应商设备封装: 32-LFCSP-VQ
包装: 带卷 (TR)
ADAU1461
Rev. 0 | Page 77 of 88
R48 to R51: GPIO Pin Control, 16,582 to 16,585 (0x40C6 to 0x40C9)
The GPIO pin control register sets the functionality of each GPIO pin as shown in Table 77. The GPIO functions use the same pins as the
serial port and must be enabled in the serial data/GPIO pin configuration register (Address 0x40F4). When the GPIO pins are set to
I2C/SPI port control mode, the pins are set through writes to memory locations described in Table 31. The value of the optional internal
pull-up is nominally 250 kΩ.
The output CRC error and output watchdog error settings are sticky, that is, once set, they remain set until the ADAU1461 is reset.
Address
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0x40C6
Reserved
GPIO0[3:0]
0x40C7
Reserved
GPIO1[3:0]
0x40C8
Reserved
GPIO2[3:0]
0x40C9
Reserved
GPIO3[3:0]
Table 77. GPIO Pin Functionality Bit Settings
GPIOx[3:0] Bits
GPIO Pin Function
0000
Input without debounce (default)
0001
Input with debounce (0.3 ms)
0010
Input with debounce (0.6 ms)
0011
Input with debounce (0.9 ms)
0100
Input with debounce (5 ms)
0101
Input with debounce (10 ms)
0110
Input with debounce (20 ms)
0111
Input with debounce (40 ms)
1000
Input controlled by I2C/SPI port
1001
Output set by I2C/SPI port, with pull-up
1010
Output set by I2C/SPI port, no pull-up
1011
Output set by DSP core, with pull-up
1100
Output set by DSP core, no pull-up
1101
Reserved
1110
Output CRC error (sticky)
1111
Output watchdog error (sticky)
Table 78. GPIO Pin Control Registers
Register
Address
Bit Name
Description
Decimal
Hex
R48
16,582
0x40C6
GPIO0[3:0]
GPIO 0 pin function (see Table 77)
R49
16,583
0x40C7
GPIO1[3:0]
GPIO 1 pin function (see Table 77)
R50
16,584
0x40C8
GPIO2[3:0]
GPIO 2 pin function (see Table 77)
R51
16,585
0x40C9
GPIO3[3:0]
GPIO 3 pin function (see Table 77)
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