GMS30C7201 Datasheet, PDF (213/352 Pages) Hynix Semiconductor – 60MHz operation frequency Low power consumption

Fast AMBA Peripherals
12.10.7. USBD Signal Descriptions
Signals when the USBD is connected to the APB.
Name
PA[5:2]
PD[31:0]
PSTB
PWRITE
PSELusb
BRES
BCLK
PSELdmausb
Type
IN
INOUT
IN
IN
IN
IN
IN
IN
Description
The fast APB address signal,
The fast APB data signal
The fast APB data strobe signal
The fast APB read/write signal
The fast APB select signal
The system reset signal (active LOW)
The system clock
The fast APB usb select signal on dma access
Table 12-37: APB Address Signals
Signals when the USBD is connected to the DMAC and INTC (Interrupt USB signals
Name
DREQ
INTREQ
Type
OUT
OUT
Description
The DMAC request signal (Active HIGH)
The INTC request signal (Active HIGH)
Table 12-38: DREQ and INTREQ Signals
USB Signals
The following signals connect to a USB compatible transceiver. If the target technology
includes a USB compatible pad cell, then the number of USB interface signals can be reduced
to the two USB data signals D+ and D-.
Signal Name
URCVIN
Type 1
in
Description
receive in. This is the USB differential input signal. It
comes from a differential receiver connected to USB
signals D+ and D-.
UVP
UVM
UVPO
in
vplus in. This is the USB D+ signal received through
a standard CMOS receiver. The SIE uses this signal to
detect the single-ended zero (SE0) bus state.
in
vminus in. This is the USB D- signal received through
a standard CMOS receiver. The SIE uses this signal to
detect the single-ended zero (SE0) bus state.
out
vplus out. This pin drives the non-inverting (+) input
of the differential buffer that drives the D+/D- USB
signals.
Table 12-39: DSB Signal Names
GMS30C7201 Data Sheet
12-59