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参数资料
| 型号： | XR68M752IB-0A-EVB |
| 厂商： | Exar Corporation |
| 文件页数： | 27/54页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR 68M752 49BGA |
| 标准包装： | 1 |
| 系列： | * |
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XR16M752/XR68M752
33
REV. 1.1.1
HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
MCR[2]: OP1# / FIFO Rdy Enable
OP1# is not available as an output pin on the M752. But it is available for use during Internal Loopback Mode
(MCR[4] = 1). In the Internal Loopback Mode, this bit is used to write the state of the modem RI# interface
signal.
This bit is also used to select between the SPR, TLR and FIFO Rdy registers. All of these registers are
accessible at address offset 0x7 when LCR≠0xBF. However, LCR = 0xBF is required to access EFR.
TABLE 12: REGISTER AT ADDRESS OFFSET 0X7
EFR[4] MCR[6] MCR[4, 2] Register at Address Offset 0x7
0
X
≠’01’
Scratchpad Register (SPR)
1
0
≠’01’
Scratchpad Register (SPR)
1
≠’01’
Trigger Level Register (TLR)
X
=’01’
FIFO Ready Register (FIFO Rdy)
MCR[3]: OP2# Output / INT Output Enable
This bit enables or disables the operation of INT, interrupt output. If INT output is not used, OP2# can be used
as a general purpose output.
Logic 0 = INT (A-B) outputs disabled (three state mode) and OP2# output set HIGH(default).
Logic 1 = INT (A-B) outputs enabled (active mode) and OP2# output set LOW.
MCR[4]: Internal Loopback Enable
Logic 0 = Disable loopback mode (default).
Logic 1 = Enable local loopback mode, see loopback section and Figure 13.
MCR[5]: Xon-Any Enable (requires EFR bit-4=1 to write to this bit)
Logic 0 = Disable Xon-Any function (default).
Logic 1 = Enable Xon-Any function. In this mode, any RX character received will resume transmit operation.
The RX character will be loaded into the RX FIFO, unless the RX character is an Xon or Xoff character and
the M752 is programmed to use the Xon/Xoff flow control.
MCR[6]: TCR and TLR Enable (requires EFR bit-4=1 to write to this bit)
This bit enables the TCR and TLR registers at address offset 0x6 and 0x7, respectively. See Table 12 above
for the correct register setting to access the TLR register. See Table 13 below for the setting to access the
TCR register.
Logic 0 = Reserved (default).
Logic 1 = Enable access to the TCR and TLR registers.
TABLE 13: REGISTER AT ADDRESS OFFSET 0X6
EFR[4] MCR[6] Register at Address Offset 0x6
0
X
Modem Status Register (MSR)
1
0
Modem Status Register (MSR)
1
Trigger Control Register (TCR)
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| XR68M752IB-0B-EVB | 功能描述:界面开发工具 Eval Board for XR68M752IB Series RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
| XR68M752IB49 | 制造商:EXAR 制造商全称:EXAR 功能描述:HIGH PERFORMANCE DUART WITH 64-BYTE FIFO |
| XR68M752IB49-F | 功能描述:UART 接口集成电路 W/64 BYTE FIFO RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| XR68M752IL-0B-EB | 功能描述:界面开发工具 Support XR68M752 32L QFN, PCI Interface RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
| XR68M752IL32 | 制造商:EXAR 制造商全称:EXAR 功能描述:HIGH PERFORMANCE DUART WITH 64-BYTE FIFO |
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