78Q2132 TDK Corp., 78Q2132 Datasheet - Page 11

• Manufacturer Part Number: 78Q2132
• Description: 1/10base-t Homepna/ethernet Transceiver
• Manufacturer: TDK Corp.

REGISTER DESCRIPTION
The 2132 implements twenty user accessible 16-bit registers which are accessible through the Station
Management Interface on the MDIO and MDC pins. The supported registers are shown below. Unsupported
registers will be read as all zeros. All of the registers respond to the broadcast address, PHYAD value 00000.
The register map is implemented in two pages, with page 0 being the power-up reset default. Page 0 implements
the standard 802.3 MII registers along with the vendor specific register set. The vendor specific registers 16, 17,
18, 19 are mapped into both pages for convenience and to implement the page selection via bit MR19.0. Page 1
contains the HomePNA specific registers. The MII management 16-bit register set implemented in the 2132 is as
follows:
Note: MR 3.3:0 contains revision specific data.
LEGEND
In above table, the (xxxx) denotes that some of the bit values are determined by pin settings, and so, the default
may be a bit different.
TYPE
RC
0/1
R
ADDRESS
8-15
4,5
6,7
16
17
18
19
0
1
2
3
4
5
6
7
0
1
2
3
DESCRIPTION
Read-able by management
Cleared on a read operation
Default value upon power-up or reset
Page
both
both
both
both
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
SYMBOL
MR8-15
P1R4,5
P1R6,7
MR16
MR17
MR18
MR19
P1R0
P1R1
P1R2
P1R3
MR0
MR1
MR2
MR3
MR4
MR5
MR6
MR7
NAME
Control
Status
PHY Identifier 1
PHY Identifier 2
Auto-Negotiation Advertisement
Auto-Negotiation Link Partner Ability
Auto-Negotiation Expansion
(Not implemented, read as zero)
(Reserved, read as zero)
Vendor Specific
Interrupt Control/Status Register
Diagnostic Register
HomePNA Register
HomePNA Control
HomePNA Status
HomePNA IMASK
HomePNA ISTAT
HomePNA TX_PCOM
HomePNA RX_PCOM
TYPE
(0/1)
SC
W
11
HomePNA/Ethernet Transceiver
DESCRIPTION
Write-able by management
Self clearing, write-able
Default value dependent on pin setting. The value in
brackets indicates typical case.
RESET VALUE (HEX)
1/10BASE-TX
00000000
00000000
(0000)
(1801)
(0061)
(0141)
(0000)
78Q2132
000E
7121
0000
0000
0000
0000
0000
0000
0004
0000
0000
0000