參數(shù)資料
型號(hào)： AD9787-DPG2-EBZ
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 25/64頁(yè)
文件大小： 0K
描述： BOARD EVALUATION FOR AD9787
標(biāo)準(zhǔn)包裝： 1
系列： *
DAC 的數(shù)量： 2
位數(shù)： 14
采樣率（每秒）： 800M
數(shù)據(jù)接口： 串行
設(shè)置時(shí)間： 22ms
DAC 型： 電流
工作溫度： -40°C ~ 85°C
已供物品： *
已用 IC / 零件： AD9787
AD9785/AD9787/AD9788
Rev. A | Page 31 of 64
The interrupt control register comprises two bytes located at Address 0x09. Bits [11:10] and Bits [7:3] are read-only bits that indicate the
current status of a specific event that may cause an interrupt request (IRQ pin active low). These bits are controlled via the digital logic
and are read only via the serial port. Bits [1:0] are the IRQ mask (or enable) bits, which are writable by the user and can also be read back.
Table 19. Interrupt Control Register
Address
Bit
Name
Description
0x09
[15:13]
Reserved
Reserved for future use.
[12]
Clear lock indicator
Writing a 1 to this bit clears the sync lock lost status bit. This bit does not automatically
reset itself to 0 when the reset is complete.
[11]
Sync lock lost status
When high, this bit indicates that the device has lost synchronization. This bit is latched
and does not reset automatically after the device regains synchronization. To reset this
bit to 0, a 1 must be written to the clear lock indicator bit.
[10]
Sync lock status
When this bit is low, the device is not synchronized. When this bit is high, the device is
synchronized.
[9:8]
Reserved
Reserved for future use.
[7]
Data timing error IRQ
0: Default. No setup or hold time error has been detected via the input data port
setup/hold error checking logic.
1: A setup or hold time error has been detected via the input data port setup/hold error
checking logic.
[6]
Sync timing error IRQ
0: Default. No setup or hold time error has been detected via the multichip
synchronization receive pulse setup/hold error checking logic.
1: A setup or hold time error has been detected via the multichip synchronization
receive pulse setup/hold error checking logic.
[5]
Data timing error type
0: Default. A hold error has been detected via the input data port setup/hold error
checking logic. This bit is valid only if the data timing error IRQ bit (Bit 7) is set.
1: A setup error has been detected via the input data port setup/hold error checking
logic. This bit is valid only if the data timing error IRQ bit (Bit 7) bit is set.
[4]
Sync timing error type
0: Default. A hold error has been detected via the multichip synchronization receive
pulse setup/hold error checking logic. This bit is valid only if the sync timing error IRQ
bit (Bit 6) is set.
1: A setup error has been detected via the multichip synchronization receive pulse
setup/hold error checking logic. This bit is valid only if the sync timing error IRQ bit
(Bit 6) is set.
[3]
PLL lock indicator
0: Default. The PLL clock multiplier is not locked to the input reference clock.
1: The PLL clock multiplier is locked to the input reference clock.
[2]
Reserved
Reserved for future use.
[1]
Data port IRQ enable
0: Default. The data IRQ bit (and the IRQ pin) are not enabled (masked) for any errors
that may be detected via the input data port setup/hold error checking logic.
1: The data IRQ bit (and the IRQ pin) are enabled and go active if a setup or hold error is
detected via the input data port setup/hold error checking logic.
[0]
Sync port IRQ enable
0: Default. The sync IRQ bit (and the IRQ pin) are not enabled (masked) for any errors
that may be detected via the multichip synchronization receive pulse setup/hold error
checking logic.
1: The sync IRQ bit (and the IRQ pin) are enabled and go active if a setup or hold error
is detected via the multichip synchronization receive pulse setup/hold error checking
logic.
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