W86L488AY WINBOND [Winbond], W86L488AY Datasheet - Page 11
![no-image](/images/no-image-200.jpg)
W86L488AY
Manufacturer Part Number
W86L488AY
Description
SD/ SDIO/ MMC MEMORY CARD BRIDGE
Manufacturer
WINBOND [Winbond]
Datasheet
1.W86L488AY.pdf
(45 pages)
- Current page: 11 of 45
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4.2 W86L488AY Pin Descriptions, continued
Crystal Driver (VDD3 powered):
Host Interface Signal (VDDH powered):
47:50
60:64
9:12
PIN
1:5
54
55
22
19
23
20
26
29
16
17
38
45
ADAT3/ACS
BDAT3/BCS
ACMD/ACDI
BCMD/BCDI
D15/A0
D[13:9]
XCSN
NAME
A[4:1]
D[8:4]
D[3:0]
ACLK
BCLK
HCKI
XTO
D14
XTI
DO/DI
DO/DI
DI/DO
DI/DO
DI/DO
DI/DO
DI/DO
TYPE
DO
DO
DI
DI
DI
DI
Clock driver input signal, may be used as external clock input.
Clock driver output signal.
Chip select input pin, active low.
SD/MMC mode:
Data line bit 3 or Card detect for SD/SDIO card.
SPI mode:
Card select.
SD/MMC mode:
Command response for SD/SDIO card or MMC card.
SPI mode:
Card data input.
This pin will tri-state when the command is not driven.
Clock output signal for SD/SDIO card or MMC card. This pin
will stay at high or low when card clock is not needed depends
on the state of CKDH bit setting.
Host clock input.
Address input pins.
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.
Data bus D14 pin.
Data bus D[13:9] pins.
Data bus D[8:4] pins, D[7:0] is the low byte of the data bus.
Data bus D[3:0] pins.
- 8 -
Publication Release Date: February 5, 2004
DESCRIPTION
Preliminary W86L488
Revision 0.82
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