NEC switch User Manual

Page 46

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CHAPTER 3 CPU ARCHITECTURE

User’s Manual U12978EJ3V0UD

46

Table 3-2. Special Function Register List (2/3)

Address

Special Function Register (SFR) Name

Symbol

R/W

Manipulatable Bit Unit

After Reset

1 Bit

8 Bits

16 Bits

FF62H

Token packet receive result store register

TRXRSL

R/W

00H

FF63H

Data/handshake PID compare register

DIDCMP

W

C3H

FF64H

Data/handshake packet receive byte

number counter

DRXCON

18H

FF65H

Data/handshake packet receive result store

register

DRXRSL

R/W

00H

FF66H

Data/handshake packet receive mode

register

URXMOD

FF67H

Packet receive status register

RXSTAT

FF68H

Data packet transmit byte number counter 0

DTXCO0

W

20H

FF69H

Data packet transmit byte number counter 1

DTXCO1

30H

FF6AH

Remote wakeup control register

REMWUP

R/W

08H

FF6BH

Transmit/receive pointer

USBPOW

R

00H

FF6CH

USB timer start reservation control register

USBTCL

R/W

01H

FF6DH

USB receiver enable register

USBMOD

00H

FF72H

Serial operation mode register 10

CSIM10

FFA1H

Transmit data PID bank 0

USBTD0

W

Undefined

FFA2H

Transmit data bank 0 address 00

USBT00

FFA3H

Transmit data bank 0 address 01

USBT01

FFA4H

Transmit data bank 0 address 02

USBT02

FFA5H

Transmit data bank 0 address 03

USBT03

FFA6H

Transmit data bank 0 address 04

USBT04

FFA7H

Transmit data bank 0 address 05

USBT05

FFA8H

Transmit data bank 0 address 06

USBT06

FFA9H

Transmit data bank 0 address 07

USBT07

FFABH

Transmit data PID bank 1

USBTD1

FFACH

Transmit data bank 1 address 10

USBT10

FFADH

Transmit data bank 1 address 11

USBT11

FFAEH

Transmit data bank 1 address 12

USBT12

FFAFH

Transmit data bank 1 address 13

USBT13

FFB0H

Transmit data bank 1 address 14

USBT14

FFB1H

Transmit data bank 1 address 15

USBT15

FFB2H

Transmit data bank 1 address 16

USBT16

FFB3H

Transmit data bank 1 address 17

USBT17

FFB5H

Receive token PID

USBRTP

R

00H

FFB6H

Receive token address L

USBRAL

FFB7H

Receive token address H

USBRAH

FFE0H

Interrupt request flag register 0

IF0

R/W

FFE1H

Interrupt request flag register 1

IF1

FFE4H

Interrupt mask flag register 0

MK0

FFH

FFE5H

Interrupt mask flag register 1

MK1

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