KSZ9031RNXVC Ver la hoja de datos (PDF) - Microchip Technology
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KSZ9031RNXVC Datasheet PDF : 78 Pages
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KSZ9031RNX
4.0 REGISTER DESCRIPTIONS
This chapter describes the various control and status registers (CSRs).
4.1 Register Map
The register space within the KSZ9031RNX consists of two distinct areas.
• Standard registers
// Direct register access
• MDIO Manageable device (MMD) registers // Indirect register access
The KSZ9031RNX supports the following standard registers.
TABLE 4-1: STANDARD REGISTERS SUPPORTED BY KSZ9031RNX
Register Number (hex) Description
IEEE-Defined Registers
0h
Basic Control
1h
Basic Status
2h
PHY Identifier 1
3h
PHY Identifier 2
4h
Auto-Negotiation Advertisement
5h
Auto-Negotiation Link Partner Ability
6h
Auto-Negotiation Expansion
7h
Auto-Negotiation Next Page
8h
Auto-Negotiation Link Partner Next Page Ability
9h
1000BASE-T Control
Ah
1000BASE-T Status
Bh - Ch
Dh
Eh
Fh
Reserved
MMD Access – Control
MMD Access – Register/Data
Extended Status
Vendor-Specific Registers
10h
Reserved
11h
Remote Loopback
12h
LinkMD Cable Diagnostic
13h
Digital PMA/PCS Status
14h
Reserved
15h
16h - 1Ah
1Bh
1Ch
1Dh - 1Eh
RXER Counter
Reserved
Interrupt Control/Status
Auto MDI/MDI-X
Reserved
1Fh
PHY Control
The KSZ9031RNX supports the following MMD device addresses and their associated register addresses, which make
up the indirect MMD registers. These can be seen in Table 4-2.
2016 Microchip Technology Inc.
DS00002117C-page 31
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