TUSB2E22RZAR

符合 USB 2.0 和 eUSB2 标准（修订版 1.1） 支持低速 (LS)、全速 (FS)、高速 (HS) 具有 2:2 交叉开关多路复用器的双路中继器 支持主机和器件模式 (DRD) 四种 eUSB2 补偿设置，可满足不同的系统要求 eUSB2 LS/FS 信令满足 eUSB2 接口的 1.2V 选项要求 TUSB2E22 允许在使用较低电压工艺的较新处理器上实现符合 USB 2.0 标准的端口。 TUSB2E22 是一款支持器件和主机模式且符合 USB 标准的 eUSB2-USB 2.0 中继器。 TUSB2E22 支持 USB 低速 (LS)、全速 (FS) 和高速(HS) 信号。 TUSB2E22 旨在连接在 1.2V 单端信令下工作的 eUSB2 eDSPr 或 eUSPr。 TUSB2E22 通过 EQ0 和 EQ1 引脚提供四种补偿设置级别。这些设置可用于优化不同 eUSB2 通道损耗曲线的补偿。 The TUSB2E22 is a dual eUSB2 to USB 2.0 repeater that resides between SoC with one or two eUSB2 port and an external connector that supports USB 2.0. Each repeater is independently configurable as either a host or device repeater (DRD repeater). The USB 2.0 ports A and B can be swapped by an internal crossbar switch by configuring CROSS pin at reset. CROSS pin is ignored after power up reset. TUSB2E22 supports two USB 2.0 ports. Each port supports Low Speed, Full Speed and High Speed operations. TUSB2E22 supports two eUSB2 ports with 1.2V single ended signaling. Each port support Low Speed, Full Speed and High Speed operations. TUSB2E22 supports a cross mux functionality that can map either of the two eUSB2 ports to the two USB 2.0 ports providing design flexibility. Upon deassertion of RESETB and after t_RH_READY, TUSB2E22 will enable and enter default state and be ready to accept eUSB2 packets. RESETB could be used as a power down pin when asserted low. Power down mode will put TUSB2E22 in lowest power mode. CROSS pin will control the orientation of the integrated cross bar mux. Upon deassertion of RESETB followed by internally generated reset signal and 1ms delay, CROSS pin is sampled and latched. The system needs to make sure that CROSS meets t_su_CROSS and t_hd_CROSS with respect to power supply ramp and RESETB deassertion per 节 8.3. Changes to the state of the CROSS input while RESETB is high will be ignored. TUSB2E22 can be used in either HOST or Peripheral implementation. The mode is configured by the eUSB2 SoC. TUSB2E22 supports the 1.2 V option of the eUSB2 specification. eUSB2 SoC must be compliant to the 1.2 V option of the eUSB2 specification.

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