w86l488y-ay Winbond Electronics Corp America, w86l488y-ay Datasheet - Page 11

• Manufacturer Part Number: w86l488y-ay
• Description: Winbond Host Interface Sd/sdio/mmc Memory Card Bridge
• Manufacturer: Winbond Electronics Corp America

4.2
Type:
DP
DI
DO
DIO
Note*1: When Host I/F voltage is 2.5V, VDDH connects to 2.5V.
SD/SDIO/MMC Interface (VDD3 powered):
PIN
27
30
28
31
21
18
W86L488AY Pin Descriptions
When Host I/F voltage is 3.3V, VDDH connects to
: Power,
: Digital Input,
: Digital Output.
: Digital Input/Output
ADAT0
BDAT0
ADAT1
BDAT1
ADAT2
BDAT2
ACDO
BCDO
NAME
AIRQ
BIRQ
TYPE
DIO
DIO
DIO
SD/MMC mode:
Data line bit [0] for SD and data signal for MMC.
SDIO mode:
Data line bit [0].
SPI mode:
SD/MMC mode:
Data line bit [1] for SDl and no use for MMC.
SPI mode:
No use.
SDIO mode:
SD/MMC mode:
Data line bit [2] l for SD and no use for MMC.
SDIO mode:
Data line bit [2] or Read Wait (Optional).
SPI mode:
Card data output in SPI mode.
Data line bit[1] or Interrupt (Optional).
No use.
- 8 -
3.3V.
DESCRIPTION
W86L488