KS8842-16MQL Micrel Inc, KS8842-16MQL Datasheet - Page 13
![IC SWITCH 10/100 16BIT 128PQFP](/photos/6/81/68152/576-128-pqfp_sml.jpg)
KS8842-16MQL
Manufacturer Part Number
KS8842-16MQL
Description
IC SWITCH 10/100 16BIT 128PQFP
Manufacturer
Micrel Inc
Specifications of KS8842-16MQL
Applications
*
Mounting Type
Surface Mount
Package / Case
128-MQFP, 128-PQFP
Number Of Primary Switch Ports
2
Internal Memory Buffer Size
32
Operating Supply Voltage (typ)
3.3V
Fiber Support
Yes
Integrated Led Drivers
Yes
Phy/transceiver Interface
MII
Power Supply Type
Analog/Digital
Package Type
PQFP
Data Rate (typ)
10/100Mbps
Vlan Support
Yes
Operating Temperature (max)
70C
Operating Temperature (min)
0C
Pin Count
128
Mounting
Surface Mount
Jtag Support
No
Operating Supply Voltage (max)
3.5V
Operating Supply Voltage (min)
3.1V
Operating Temperature Classification
Commercial
Data Rate
100Mbps
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
KS8842-PMQL-EVAL - EVAL KIT EXPERIMENTAL KS8842KS8842-16MQL-EVAL - EVAL KIT EXPERIMENTAL KS8842
Lead Free Status / RoHS Status
Not Compliant, Lead free / RoHS Compliant
Other names
576-1458
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Pin Description for KSZ8842-16 Switches (8/16-Bit)
Micrel, Inc.
October 2007
Pin Number
10
11
1
2
3
4
5
6
7
8
9
RDYRTNN
SCAN_EN
Pin Name
TEST_EN
P1LED2
P1LED1
P1LED0
P2LED2
P2LED1
P2LED0
VDDIO
DGND
Type
Opu
Opu
Opu
Opu
Opu
Opu
Gnd
Ipd
P
I
I
Pin Function
Test Enable
For normal operation, pull-down this pin to ground.
Scan Test Scan Mux Enable
For normal operation, pull-down this pin to ground.
Port 1 and Port 2 LED indicators
Notes:
1. Link = On; Activity = Blink; Link/Act = On/Blink; Full Dup/Col = On/Blink;
Full Duplex = On (Full duplex); Off (Half duplex)
Speed = On (100BASE-T); Off (10BASE-T)
2. P1LED3 is pin 27. P2LED3 is pin 22.
Port 1 and Port 2 LED indicators
Note 3: RPT_COL = Blink; RPT_Link3/RX (Host port) = On/Blink;
RPT_Link2/RX (Port 2) = On/Blink; RPT_Link1/RX (Port 1) = On/Blink;
RPT_ACT = on if any activity, RPT_ERR3/2/1 = RX error on port 3, 2, or 1.
Digital ground
3.3V digital V
Ready Return Not:
For VLBus-like mode: Asserted by the host to complete synchronous read
cycles. If the host doesn’t connect to this pin, assert this pin.
For burst mode (32-bit interface only): Host drives this pin low to signal waiting
states.
P1LED3
P1LED2/P2LED2
P1LED1/P2LED1
P1LED0/P2LED0
P1LED3
P1LED2/P2LED2
P1LED1/P2LED1
P1LED0/P2LED0
P1LED3, P2LED3
P1LED2, P2LED2
P1LED1, P2LED1
P1LED0, P2LED0
2
2
/P2LED3
/P2LED3
DDIO
input power supply for IO with well decoupling capacitors.
13
Switch Global Control Register 5: SGCR5 bit
[15,9]
[0,0] Default
RPT_COL, RPT_ACT
RPT_Link3/RX, RPT_ERR3
RPT_Link2/RX, RPT_ERR2
RPT_Link1/RX, RPT_ERR1
Switch Global Control Register 5:
SGCR5 bit [15,9]
[0,0] Default
—
Link/Act
Full duplex/Col
Speed
Reg. SGCR5 bit [15,9]
[1,0]
Act
Link
Full duplex/Col
Speed
1
3
defined as follows:
for Repeater mode defined as follows:
KSZ8842-16/32 MQL/MVL/MVLI/MBL
[0,1]
—
100Link/Act
10Link/Act
Full duplex
[1,1]
—
—
—
—
[0,1] [1,0] [1,1]
—
—
—
—
M9999-102207-1.9