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| 型號(hào)： | AD9523-1/PCBZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 52/60頁 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR AD9523-1 |
| 設(shè)計(jì)資源： | AD9523(-1) Eval Board Schematic AD9523(-1) BOM AD9523(-1) Gerber Files |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 主要目的： | 計(jì)時(shí)，時(shí)鐘發(fā)生器 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | AD9523 |
| 主要屬性： | 板載 PLL 環(huán)路濾波器 |
| 次要屬性： | LED 狀態(tài)指示器 |
| 已供物品： | 板 |
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AD9523-1
Rev. B | Page 56 of 60
Table 56. Power-Down Control
Address
Bits
Bit Name
Description
[7:3]
Reserved
Reserved.
1: power-down (default).
2
PLL1 power-down
0: normal operation.
1: power-down (default).
1
PLL2 power-down
0: normal operation.
Powers down the distribution.
1: power-down (default).
0x233
0
Distribution
power-down
0: normal operation.
Table 57. Update All Registers
Address
Bits
Bit Name
Description
[7:1]
Reserved
Reserved.
This bit must be set to 1 to transfer the contents of the buffer registers into the active registers,
which happens on the next SCLK rising edge. This bit is self-clearing; that is, it does not have to
be set back to 0.
0x234
0
IO_Update
1 (self-clearing): update all active registers to the contents of the buffer registers.
EEPROM Buffer (Address 0xA00 to Address 0xA16)
Table 58. EEPROM Buffer Segment
Address
Bits
Bit Name
Description
0xA00
to
0xA16
[7:0]
EEPROM Buffer
Segment Register 1
to EEPROM Buffer
Segment Register 23
The EEPROM buffer segment section stores the starting address and number of bytes that are to
be stored and read back to and from the EEPROM. Because the register space is noncontiguous,
the EEPROM controller needs to know the starting address and number of bytes in the register
space to store and retrieve from the EEPROM. In addition, there are special instructions for the
EEPROM controller: operational codes (that is, IO_Update and end-of-data) that are also stored in
the EEPROM buffer segment. The on-chip default setting of the EEPROM buffer segment registers
is designed such that all registers are transferred to/from the EEPROM, and an IO_Update is issued
after the transfer (see the Programming the EEPROM Buffer Segment section).
EEPROM Control (Address 0xB00 to Address 0xB03)
Table 59. Status_EEPROM
Address
Bits
Bit Name
Description
[7:1]
Reserved
Reserved.
This read-only bit indicates the status of the data transferred between the EEPROM and the buffer
register bank during the writing and reading of the EEPROM. This signal is also available at the
STATUS0 pin when Register 0x232, Bit 4, is set.
0: data transfer is complete.
0xB00
0
Status_EEPROM
(read only)
1: data transfer is not complete.
Table 60. EEPROM Error Checking Readback
Address
Bits
Bit Name
Description
[7:1]
Reserved
Reserved.
This read-only bit indicates an error during the data transfer between the EEPROM and the buffer.
0: no error; data is correct.
0xB01
0
EEPROM data error
(read only)
1: incorrect data detected.
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