Configuration Of Receive Token Bank - NEC switch User Manual

(3) Receive token bank
(a) Receive token PID (USBRTP)
This is the receive token packet ID area. The data input to the token PID compare register (TIDCMP) is
stored here.
USBRTP is read with an 8-bit memory manipulation instruction.
RESET input sets USBRTP to 00H.
(b) Receive token address L and H (USBRAL and USBRAH)
This stores the token packet to be transferred from the host. USBRAL and USBRAH consist of 16 bits.
Bits 0 to 6 of USBRAL store the data input to the token address compare register (ADRCMP).
Both USBRAL and USBRAH are read with an 8-bit memory manipulation instruction.
RESET input sets these registers to 00H.
Symbol 07H
USBRTP
Endpoint
USBRAL
area
USBRAH
102
CHAPTER 8 USB FUNCTION
Figure 8-4. Configuration of Receive Token Bank
USBPOB address
06H 05H 04H
ID area
Address area
Fixed to 0
User's Manual U12978EJ3V0UD
03H 02H 01H
Endpoint area
00H
00H
01H
02H