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TUSB2136 数据表(PDF) 18 Page - Texas Instruments |
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TUSB2136 数据表(HTML) 18 Page - Texas Instruments |
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18 / 53 page  2−5 Table 2−2. Memory-Mapped Registers Summary (XDATA Range = FF80 → FFFF) ADDRESS REGISTER DESCRIPTION FFFF FUNADR FUNADR: Function address register FFFE USBSTA USBSTA: USB status register FFFD USBMSK USBMSK: USB interrupt mask register FFFC USBCTL USBCTL: USB control register FFFB HUBVIDH HUBVIDH: HUB-VID register (high-byte) FFFA HUBVIDL HUBVIDL: HUB-VID register (low-byte) FFF9 HUBPIDH HUBPIDH: HUB-PID register (high-byte) FFF8 HUBPIDL HUBPIDL: HUB-PID register (low-byte) FFF7 HUBCNFG HUBCNFG: HUB-configuration register FFF6 VIDSTA VIDSTA: VID/PID status register FFF5 HUBPOTG HUBPOTG: HUB power-on to power-good descriptor register FFF4 HUBCURT HUBCURT: HUB current descriptor register FFF3 I2CADR I2CADR: I2C address register FFF2 I2CDAI I2CDAI: I2C data-input register FFF1 I2CDAO I2CDAO: I2C data-output register FFF0 I2CSTA I2CSTA: I2C status and control register ↑ RESERVED FF97 PUR3 Port 3 pullup resistor register FF96 PUR2 Port 2 pullup resistor register FF95 PUR1 Port 1 pullup resistor register FF94 PUR0 Port 0 pullup resistor register FF93 WDCSR WDCSR: Watchdog timer, control and status register FF92 VECINT VECINT: Vector interrupt register FF91 RESERVED FF90 MCNFG MCNFG: MCU configuration register ↑ RESERVED FF84 INTCFG INTCFG: Interrupt delay configuration register FF83 OEPBCNT_0 OEPBCNT_0: Output endpoint-0 byte count register FF82 OEPCNFG_0 OEPCNFG_0: Output endpoint-0 configuration register FF81 IEPBCNT_0 IEPBCNT_0: Input endpoint-0 byte count register FF80 IEPCNFG_0 IEPCNFG_0: Input endpoint-0 configuration register 2.4 Endpoint Descriptor Block (EDB-1 to EDB-3) Data transfers between USB, MCU and external devices are defined by an endpoint descriptor block (EDB). Four input and four output EDBs are provided. With the exception of EDB-0 (I/O endpoint 0), all EDBs are located in SRAM as shown in Table 2−3. Each EDB contains information describing the X and Y buffers. In addition, it provides general status information. |
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