W86L388D datasheet(6/28 Pages) WINBOND

Teilenummer	W86L388D

Bauteilbeschribung	W86L388D Winbond Host Interface SD/MMC Memory Card Bridge

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Hersteller	WINBOND [Winbond]

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W86L388D

Preliminary

Publication Release Date: August 2001

- 3 -

Revision 0.50

4. PIN DESCRIPTIONS

Name

Type

Description

SD Interface:

21

SD5

DO/DI

SD connection #5

22

SD6

DO/DI

SD connection #6

15

SD1

DO/DI

SD connection #1

16

SD2

DO/DI

SD connection #2

17

SD3

DO

SD connection #3

20

SD4

DO

SD connection #4

Crystal Driver:

13

XTI

DI

Clock driver input signal, may be used as external clock input.

14

XTO

DO

Clock driver output signal.

Host Interface Signal:

28

HCKI

DI

Host clock input.

35

XCSN

DI

Chip select input pin, active low.

36:38

A[3:1]

DI

Address input pins.

40

D15/A0

DI/DO

Data bus D15 pin, D[15:8] is the high byte of the data bus, D15

also used as A0 when 8-bit CPU data size. In 8-bit mode,

internal register high byte (D15:8) will accessed at data bus [7:0]

when A0 = 1, low byte (D7:0) will accessed at data bus [7:0]

when A0 = 0.

41

D14

DI/DO

Data bus D14 pin.

44:48

D[13:9]

DI/DO

Data bus [13:9] pins.

1:5

D[8:4]

DI/DO

Data bus [8:4] pins, D[7:0] is the low byte of the data bus.

7:10

D[3:0]

DI/DO

Data bus [3:0] pins.

33

XWRHN/

XBE0

DI

Type 1:

High byte (D15 to D8) write control pin, active low.

Type 2:

High byte (D15 to D8) data valid pin, active low.

34

XWRLN/

XBE1

DI

Type 1:

Low byte (D7 to D0) write control pin, active low.

Type 2:

Low byte (D7 to D0) data valid pin, active low.

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