VR4102 datasheet(139/701 Pages) NEC

139 / 701 page

CHAPTER 5 MEMORY MANAGEMENT SYSTEM

139

5.3.3 Internal I/O Space

The VR4102 has two internal I/O spaces. Each of these spaces are described below.

Table 5-9. Internal I/O Space 1

Physical address

Internal I/O

0x0CFF FFFF to 0x0C00 0060

Reserved for future use

0x0C00 005F to 0x0C00 0040

FIR

0x0C00 003F to 0x0C00 0020

HSP (Software modem interface)

0x0C00 001F to 0x0C00 0000

SIU (16550)

Table 5-10. Internal I/O Space 2

Physical address

Internal I/O

0x0BFF FFFF to 0x0B00 02C0

Reserved for future use

0x0B00 02BF to 0x0B00 02A0

PIU2

0x0B00 029F to 0x0B00 0280

Reserved for future use

0x0B00 027F to 0x0B00 0260

A/D test

0x0B00 025F to 0x0B00 0240

LED

0x0B00 023F to 0x0B00 0220

Reserved for future use

0x0B00 021F to 0x0B00 0200

ICU2

0x0B00 01FF to 0x0B00 01E0

Reserved for future use

0x0B00 01DF to 0x0B00 01C0

RTC2

0x0B00 01BF to 0x0B00 01A0

DSIU

0x0B00 019F to 0x0B00 0180

KIU1

0x0B00 017F to 0x0B00 0160

AIU

0x0B00 015F to 0x0B00 0140

Reserved for future use

0x0B00 013F to 0x0B00 0120

PIU1

0x0B00 011F to 0x0B00 0100

GIU1

0x0B00 00FF to 0x0B00 00E0

DSU

0x0B00 00DF to 0x0B00 00C0

RTC1

0x0B00 00BF to 0x0B00 00A0

PMU

0x0B00 009F to 0x0B00 0080

ICU1

0x0B00 007F to 0x0B00 0060

CMU

0x0B00 005F to 0x0B00 0040

DCU

0x0B00 003F to 0x0B00 0020

DMAAU

0x0B00 001F to 0x0B00 0000

BCU

VR4102 Datasheet(PDF) 139 Page - NEC

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