KSZ8842-16_08 Datasheet, PDF (77/141 Pages) Micrel Semiconductor – 2-Port Ethernet Switch with Non-PCI Interface

Micrel, Inc.
KSZ8842-16/32 MQL/MVL/MVLI/MBL
Bank 32 Switch Global Control Register 5 (0x0A): SGCR5
This register contains the global control for the switch function.
Bit
Default
15
0
14-12 0x0
11-10 0x2
9
0
R/W Description
RW LEDSEL1
See the description in bit 9.
RW Reserved
RW Reserved
RW LEDSEL0
These two bits, LEDSEL1 and LEDSEL0, are used to select LED mode.
Port n LED indicators, (where n = 1 for port 1 and n =2 for port 2) defined as below:
[LEDSEL1, LEDSEL0]
[0, 0]
[0, 1]
PnLED3
------
------
PnLED2
LINK/ACT
100LINK/ACT
PnLED1
FULL_DPX/COL 10LINK/ACT
PnLED0
SPEED
FULL_DPX
PnLED3
PnLED2
PnLED1
PnLED0
[LEDSEL1, LEDSEL0]
[1, 0]
[1, 1]
ACT
------
LINK
------
FULL_DPX/COL ------
SPEED
------
8
0
7-0
0x35
For repeater mode:
[LEDSEL1, LEDSEL0]
[0, 0]
[0, 1] [1, 0] [1, 1]
P1LED3; P2LED3 RPT_COL; RPT_ACT
------
P1LED2; P2LED2 RPT_LINK3/RX; RPT_ERR3 ------
P1LED1; P2LED1 RPT_LINK2/RX; RPT_ERR2 ------
P1LED0; P2LED0 RPT_LINK1/RX; RPT_ERR1 ------
RW Reserved
RW Reserved
October 2007
77
M9999-102207-1.9