参数资料
型号: AFE7222EVM
厂商: Texas Instruments
文件页数: 55/106页
文件大小: 0K
描述: EVAL MODULE FOR AFE7222
标准包装: 1
主要目的: 接口,模拟前端(AFE)
嵌入式:
已用 IC / 零件: AFE7222
已供物品:
其它名称: 296-30300
AFE7222EVM-ND
SLOS711B – NOVEMBER 2011 – REVISED MARCH 2012
DFS_RX
DATA FORMAT
0
2s-complememt
1
straight offset binary
MSB_FIRST_RX: Flips the out data order to MSB first.
MSB_FIRST_RX
DATA ORDER
0
LSB first
1
MSB first
TWOWIRE_RX: Configure the device to give data in two wire mode.
SDR_RX: Configure the device to give data in SDR mode.
Register Name – CONFIG132 – Address 0x33B, Default = 0x00
<7>
<6>
<5>
<4>
<3>
<2>
<1>
<0>
HALFX_IN_2WIRE_RX
BITWISE_RX
All the modes of register 0x33B work only if MASTER_OVERRIDE_RX (Bit <7> in Address 0x33A) is
enabled.
BITWISE_RX: Configure the device to give data in bit wise mode.
HALFX_IN_2WIRE_RX: Makes the frame clock output 0.5X (default is 1X). To be used when in wordwise
mode.
Register Name – CONFIG133 – Address 0x23A, Default = 0x00
<7>
<6>
<5>
<4>
<3>
<2>
<1>
<0>
CLK_STR_2X
DATA_STR_2X
CLK_STR_RX: When set, the LVDS clock buffers has double strength (to be used with 50 ohms external
termination)
DATA_STR_2X: When set, all the LVDS clock buffers have double strength (to be used with 50 ohms
external termination)
Register Name – CONFIG134 – Address 0x001, Default = 0x00
<7>
<6>
<5>
<4>
<3>
<2>
<1>
<0>
LVDS_SWING<5:0>
5.9
AUX ADC REGISTERS
Register Name – CONFIG135 – Address 0x364, Default = 0x00
<7>
<6>
<5>
<4>
<3>
<2>
<1>
<0>
SHIGH_WIDTH<1:0>
NO_OF_SAMPLES_AVGED<1:0>
NO_OF_SAMPLES<2:0>
CONV_START
SHIGH_WIDTH<1:0>: No. of clock cycles width of sampling clock.
SHIGH_WIDTH<1:0>
NO.OF CLOCK CYCLE WIDTH
00
15(default)
01
30
10
60
11
150
NO_OF_SAMPLES<2:0>: No. of samples to convert in 1 conversion cycle.
52
REGISTER DESCRIPTIONS
Copyright 2011–2012, Texas Instruments Incorporated
Product Folder Link(s): AFE7222 AFE7225
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