4.2.3 Status Data Port (Slot 2) RD[15:0] Read Data. The RD[15:0] bits contain the register data requested by the cont" />
參數(shù)資料
型號(hào)： CS4205-KQZ
廠商： Cirrus Logic Inc
文件頁(yè)數(shù)： 16/81頁(yè)
文件大?。?/td> 0K
描述： IC CODEC AC97 I2S 48-LQFP
標(biāo)準(zhǔn)包裝： 250
類型： 音頻編解碼器 '97
數(shù)據(jù)接口： 串行
分辨率（位）： 18，20 b
ADC / DAC 數(shù)量： 1 / 2
三角積分調(diào)變： 是
動(dòng)態(tài)范圍，標(biāo)準(zhǔn) ADC / DAC (db)： 90 / 90
電壓 - 電源，模擬： 4.75 V ~ 5.25 V
電壓 - 電源，數(shù)字： 4.75 V ~ 5.25 V
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 48-LQFP
供應(yīng)商設(shè)備封裝： 48-TQFP（9x9）
包裝： 托盤
產(chǎn)品目錄頁(yè)面： 754 (CN2011-ZH PDF)
其它名稱： 598-1182
CS4205
DS489PP4
23
4.2.3
Status Data Port (Slot 2)
RD[15:0]
Read Data. The RD[15:0] bits contain the register data requested by the controller from the
previous read request. All read requests will return the read address in the input Slot 1 and
the register data in the input Slot 2 on the following serial data frame.
4.2.4
PCM Capture Data (Slot 3-8,11)
CD[17:0]
Capture Data. The CD [17:0] bits contain 18-bit PCM (2’s complement) capture data. The
data will only be valid when the respective slot valid bit is ‘set’ in input Slot 0. The mapping of
a given slot to an ADC is determined by the state of the ID[1:0] bits in the Extended Audio ID
Register (Index 28h) and the SM[1:0] and AMAP bits in the AC Mode Control Register (Index
5Eh). The definition of each slot can be found in Table 14 on page 43.
4.2.5
GPIO Pin Status (Slot 12)
GPIO[4:0]
GPIO Pin Status. The GPIO[4:0] bits reflect the status of the CS4205 GPIO pins configured
as inputs. The pin status of GPIO pins configured as outputs will be reflected back on the
GPIO[4:0] bits of input Slot 12 in the next frame. The output GPIO pins are controlled by the
GPIO[4:0] pin control bits in output Slot 12.
BDI
BIOS-Driver Interface. The BDI bit indicates that a BIOS event has occurred. This bit is a logic
OR of all bits in the BDI Status Register (Index 7Ah) ANDed with their corresponding bit in the
BDI Config Register (Index 6Eh, Address 0Ch).
IEC
Internal Error Condition. The IEC bit indicates that an internal error, such as an ADC over-
range or a digital data overflow has occurred. This bit is a logic OR of all bits in the IEC Status
Register (Index 6Eh, Address 0Bh).
GPIO_INT
GPIO Interrupt. The GPIO_INT bit indicates that a GPIO, BDI, or IEC interrupt event has oc-
curred. The occurrence of a GPIO interrupt is determined by the GPIO interrupt requirements
as outlined in the GPIO Pin Wakeup Mask Register (Index 52h) description. In this case, the
GPIO_INT bit is cleared by writing a ‘0’ to the bit in the GPIO Pin Status Register (Index 54h)
corresponding to the GPIO pin which generated the interrupt.
The occurrence of a BDI interrupt is determined by the BDI interrupt requirements as outlined
in the BDI Control Registers (Index 6Eh, Address 0Ch - 0Dh). In this case, the GPIO_INT bit
is cleared by writing a ‘0’ to the bit in the BDI Status Register (Index 7Ah) that generated the
interrupt.
The occurrence of an IEC interrupt is determined by the IEC interrupt requirements as out-
lined in the Internal Error Condition Control/Status Registers (Index 6Eh, Address 09h - 0Bh).
In this case, the GPIO_INT bit is cleared by writing a ‘0’ to the bit in the IEC Status Register
(Index 6Eh, Address 0Bh) corresponding to the IEC source which generated the interrupt.
Bit 19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3210
RD15 RD14 RD13 RD12 RD11 RD10 RD9 RD8 RD7 RD6 RD5 RD4 RD3 RD2 RD1 RD0
Reserved
Bit 19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
CD17 CD16 CD15 CD14 CD13 CD12 CD11 CD10 CD9 CD8 CD7 CD6 CD5 CD4 CD3 CD2 CD1 CD0
0
Bit 19 18
17
16
15
14
13
12
11
10
9
87654
3
2
1
0
0
GPIO4 GPIO3 GPIO2 GPIO1 GPIO0 Res BDI IEC
GPIO
_INT
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