KL5KUSB101_L Просмотр технического описания (PDF) - Unspecified

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KL5KUSB101_L

USB to Ethernet Controller

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5.3 Serial EEPROM Read Access

Figure 5.3.1 SEP Read Access AC Timing

KL5KUSB101

USB to Ethernet Controller

SEPSCL

(OUT)

SEPSDA

(IN)

Tsd

valid

Thd

Table 5.3.1 SEP read access AC characteristics (over recommended range)

Symbol

Parameter

Min Typ Max Unit Not

e

Tsd

SEPSDA setup time

20

–

– ns 1

from SEPSCL rise

Thd

SEPSDA hold time

0

–

– ns 1

from SEPSCL fall

Note: 1) 30pF external capacitive load is assumed.

5.4 Serial EEPROM Write Access

Figure 5.4.1 SEP Write Access AC Timing

SEPSCL

(OUT)

SEPSDA

(OUT)

Tckf

Tpckh

Tpckl

Tdd

valid

Table 5.4.1 SEP Write Access AC Characteristics (over recommended range)

Symbol

Parameter

Min Typ Max Unit Not

e

Tsck

SEPSCL clock period 10

–

– us 1

Fsck

SEPSCL frequency

–

– 100 kHz 1

Tpckl

SEPSCL low width

4.7 –

– us 1

Tpckh SEPSCL high width

4.0

–

– us 1

Tdd

SEPSDA valid delay

2

–

20 ns 1

from SEPSCL fall

Note: 1) 30pF external capacitive load is assumed.

Ver. 2.4

Kawasaki LSI • 2570 North First Street • Suite 301 • San Jose, CA 95131 • Tel: (408) 570-0555 • Fax: (408) 570-0567 • www.klsi.com

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