10/100 Non-PCI Ethernet Single Chip MAC + PHY

Datasheet

t17

t12

t14

Clock

t12A

nDATACS

t17A

W/nR nCYCLE

 

t19

 

t19

Read Data

a

b

c

t15

nRDYRTN

Figure 14.6 Burst Read Cycles - nVLBUS=1

 

PARAMETER

MIN

TYP

MAX

UNITS

 

 

 

 

 

 

t12

nDATACS Setup to LCLK Rising

20

 

 

ns

 

 

 

 

 

 

t12A

nDATACS Hold after LCLK Rising

0

 

 

ns

 

 

 

 

 

 

t14

nRDYRTN Setup to LCLK Falling

10

 

 

ns

 

 

 

 

 

 

t15

nRDYRTN Hold after LCLK Falling

10

 

 

ns

 

 

 

 

 

 

t17

W/nR Setup to LCLK Falling

15

 

 

ns

 

 

 

 

 

 

t17A

W/nR Hold After LCLK Falling

3

 

 

ns

 

 

 

 

 

 

t19

Data Delay from LCLK Rising (Read)

5

 

15

ns

 

 

 

 

 

 

Revision 1.91 (08-18-08)

114

SMSC LAN91C111 REV C

DATASHEET