參數(shù)資料
型號: EVAL-ADAU1761Z
廠商: Analog Devices Inc
文件頁數(shù): 80/92頁
文件大?。?/td> 0K
描述: BOARD EVAL FOR ADAU1761
標準包裝: 1
系列: SigmaDSP®
主要目的: 音頻編解碼器
嵌入式: 是,DSP
已用 IC / 零件: ADAU1761
主要屬性: 立體聲,24 位,8 ~ 96 kHz 采樣率,GUI 工具
次要屬性: I²C 和 GPIO 接口,2 差分和 1 個立體聲單端模擬輸入和輸出
已供物品: 2 個板,線纜,CD
產品目錄頁面: 776 (CN2011-ZH PDF)
相關產品: ADAU1761BCPZ-RL-ND - IC SIGMADSP CODEC PLL 32LFCSP
ADAU1761BCPZ-R7-ND - IC SIGMADSP CODEC PLL 32LFCSP
ADAU1761BCPZ-ND - IC SIGMADSP CODEC PLL 32LFCSP
ADAU1761
Rev. C | Page 81 of 92
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 79. 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 32. 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 ADAU1761 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 79. 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 80. GPIO Pin Control Registers
Address
Register
Decimal
Hex
Bit Name
Description
R48
16,582
0x40C6
GPIO0[3:0]
GPIO 0 pin function (see Table 79)
R49
16,583
0x40C7
GPIO1[3:0]
GPIO 1 pin function (see Table 79)
R50
16,584
0x40C8
GPIO2[3:0]
GPIO 2 pin function (see Table 79)
R51
16,585
0x40C9
GPIO3[3:0]
GPIO 3 pin function (see Table 79)
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