PCD6003 datasheet(33/96 Pages) PHILIPS

33 / 96 page

2001 Apr 17

Philips Semiconductors

Product speciﬁcation

Digital telephone answering machine chip

PCD6003

Table 25 MCB timing

Notes

1. N depends on the chosen FSK clock rate and can be 4, 8, 16 and 32.

2. The rise time of FSK and FSO depends on the externally connected pull-up resistor and the capacitive load.

SYMBOL

PARAMETER

VALUE

TFSK

FSK period

× tmicro_clock; note 1

tsu(FSO)

FSO setup time with respect to the rising edge of FSK

(N/2 + 1)

× tmicro_clock − tr(FSO)

th(FSO)

FSO hold time with respect to the rising edge of FSK

(N/2

− 1) × tmicro_clock − tr(FSK)

tr(FSK)

FSK rise time

note 2

tr(FSO)

FSO rise time

note 2

tsu(FSI)

FSI setup time with respect to the internal shift clock

(N/2 + 1)

× tmicro_clock − tV(FSI)

th(FSI)

FSI hold time with respect to the internal shift clock

>tmicro_clock

tV(FSI)

FSI valid time with respect to the falling edge of FSK

depending on the used ﬂash memory

handbook, full pagewidth

FSO

FSI

FSK

FSO

DATA OUT

DATA IN

FSI

FSK

th(FSO)

tr(FSO)

MGM776

MCB

MCSD

WRITE

MCSD

READ

slave shift in

slave shift out

MCB

SHIFT OFF

MCSD

READ

MCB

OFF

tr(FSK)

tV(FSI)

th(FSI)

TFSK

tsu(FSO)

tsu(FSI)

Fig.12 MCB timing for a Microwire compatible device.

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