Samsung YP-P10 User Manual download pdf (Page 592)

100

101

S3C2440A RISC MICROPROCESSOR ELECTRICAL DATA

27-39

Table 27-14. IIC BUS Controller Module Signal Timing

= 1.2 V ± 0.05 V, T

= –40 to 85 °C, V

EXT

= 3.3V ± 0.3V)

Parameter Symbol Min Typ. Max Unit

SCL clock frequency f

SCL

– – std. 100

fast 400

kHz

SCL high level pulse width t

SCLHIGH

std. 4.0

fast 0.6

– –

SCL low level pulse width t

SCLLOW

std. 4.7

fast 1.3

– –

Bus free time between STOP and START t

BUF

std. 4.7

fast 1.3

– –

START hold time t

STARTS

std. 4.0

fast 0.6

– –

SDA hold time t

SDAH

std. 0

fast 0

– std. –

fast 0.9

SDA setup time t

SDAS

std. 250

fast 100

– – ns

STOP setup time t

STOPH

std. 4.0

fast 0.6

– –

NOTES: Std. means Standard Mode and fast means Fast Mode.

1. The IIC data hold time (tSDAH) is minimum 0ns.

(IIC data hold time is minimum 0ns for standard/fast bus mode in IIC specification v2.1)

Please check whether the data hold time of your IIC device is 0 nS or not.

2. The IIC controller supports only IIC bus device (standard/fast bus mode), and not C bus device.

Table 27-15. SD/MMC Interface Transmit/Receive Timing Constants

= 1.2 V ± 0.1 V, T

= –40 to 85 °C, V

EXT

= 3.3V ± 0.3V)

Parameter Symbol Min Typ. Max Unit

SD command output delay time t

SDCD

0 – 1 ns

SD command input setup time t

SDCS

14 – – ns

SD command input hold time t

SDCH

1 – – ns

SD data output delay time t

SDDD

0 – 1 ns

SD data input setup time t

SDDS

13 – – ns

SD data input hold time t

SDDH

1 – – ns

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