NEC switch User Manual page 189

USB function
Serial interface
Interrupt
CHAPTER 13 RESET FUNCTION
Table 13-1. Hardware Status After Reset (2/2)
Hardware
Data packet transmit byte number counter 0 (DTXCO0)
Data packet transmit byte number counter 1 (DTXCO1)
Token PID compare register (TIDCMP)
Token address compare register (ADRCMP)
USB receiver enable register (USBMOD)
Packet receive status register (RXSTAT)
Data/handshake packet receive result store register
(DRXRSL)
Token packet receive result store register (TRXRSL)
Data/handshake PID compare register (DIDCMP)
Data packet transmit reservation register (DTXRSV)
Handshake packet transmit reservation register
(HTXRSV)
USB timer start reservation control register (USBTCL)
Remote wakeup control register (REMWUP)
Mode register (CSIM10)
Transmit/receive shift register (SIO10)
Request flag register (IF0, IF1)
Mask flag register (MK0, MK1)
External interrupt mode register (INTM0)
Key return mode register (KRM00)
User's Manual U12978EJ3V0UD
Status After Reset
20H
30H
00H
00H
00H
00H
00H
00H
C3H
00H
00H
01H
08H
00H
Undefined
00H
FFH
00H
00H
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