參數(shù)資料
型號: AD1816A
廠商: Analog Devices, Inc.
英文描述: SoundPort Controller(數(shù)字音頻的聲音端口控制器)
中文描述: SoundPort控制器(數(shù)字音頻的聲音端口控制器)
文件頁數(shù): 44/52頁
文件大小: 373K
代理商: AD1816A
AD1816A
–44–
REV. A
Byte 2
7
6
5
4
3
2
1
0
IRQSEL4
9
11
IRQSEL9
14
IRQSEL11
15
IRQSEL4
10
X T RASZ0[3:0]
X T RASZ0[3:0]
Sets the X T RA device I/O range 0 length. T he X T RASZ0 bits set the length of the first X T RA
device I/O range as follows:
X T RASZ0
0000
1000
1100
1110
1111
I/O Range Length
16
8
4
2
1
All other combinations should be avoided.
IRQSEL4_10
Program to one to enable IRQ 10. (*, if MODEM_EN is zero)
Program to zero to enable IRQ 4. (*, if MODEM_EN is one)
IRQSEL11_15
Program to one to enable IRQ 15. (*)
Program to zero to enable IRQ 11.
IRQSEL9_14
Program to one to enable IRQ 14.
Program to zero to enable IRQ 9. (*)
IRQSEL4_9_11
Program to one to enable IRQ 11. (*)
Program to zero to enable IRQ 4 (if MODEM_EN is one) or IRQ 9 (if MODEM_EN is zero).
Byte 3
7
6
5
4
3
2
1
0
X T RASZ1[3:0]
X T RA
CS
IRQ
EN
MIRQINV
X IRQINV
X IRQINV
Program to one to make LD_IRQ active-low.
Program to zero to make LD_IRQ active-high. (*)
Program to one to make MDM_IRQ active-low.
Program to zero to make MDM_IRQ active-high. (*)
Program to one to enable additional IRQ options on the ISA bus. If MODEM_EN is zero, then two IRQs are
added; if MODEM_EN is one, this bit is ignored. Program to zero to enable I
2
S port 1 (SUPER_EN and
MODEM_EN must also be zero). (*)
Program to one to enable a second I/O range for the X T RA or SUPER logical devices. It is identical to
the first I/O range, except its size is controlled by X T RASZ1[3:0]. Program to zero to enable the X CT R1/
RING_IN pin. (*) Always considered to be zero if X T RA_EN is zero.
Sets the X T RA device I/O range one length. T he X T RASZ1 bits set the length of the second X T RA device I/O
range as follows:
MIRQINV
IRQ_EN
X T RA_CS
X T RASZ1[3:0]
X T RASZ1
0000
1000
1100
1110
1111
I/O Range Length
16
8
4
2
1
All other combinations should be avoided.
USING T HE AD1816A WIT HOUT AN E E PROM
If the EEPROM is absent (EE_CLK pin = GND), then the flags are set as shown below:
MODEM_EN = X T RA_EN = SUPER_EN = X T RA_HV = RST B_EN = IRQ_EN = 0
IRQSEL9_14 = MIRQINV = X IRQINV = 0
IRQSEL4_10 = IRQSEL11_15 = IRQSEL4_9_11 = 1
I
2
S0_HV = EE_DAT A pin
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