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參數(shù)資料
| 型號(hào)： | W86L488Y |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | SD/ SDIO/ MMC MEMORY CARD BRIDGE |
| 中文描述： | SPECIALTY MICROPROCESSOR CIRCUIT, QCC48 |
| 封裝： | 7 X 7 MM, 1 MM HEIGHT, QFN-48 |
| 文件頁(yè)數(shù)： | 11/45頁(yè) |
| 文件大小： | 1842K |
| 代理商： | W86L488Y |
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Preliminary W86L488
Publication Release Date: February 5, 2004
- 8 -
Revision 0.82
4.2 W86L488AY Pin Descriptions, continued
PIN
NAME
TYPE
DESCRIPTION
22
19
ADAT3/ACS
BDAT3/BCS
DO/DI
SD/MMC mode:
Data line bit 3 or Card detect for SD/SDIO card.
SPI mode:
Card select.
23
20
ACMD/ACDI
BCMD/BCDI
DO/DI
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.
26
29
ACLK
BCLK
DO
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.
Crystal Driver (VDD3 powered):
16
XTI
DI
Clock driver input signal, may be used as external clock input.
17
XTO
DO
Clock driver output signal.
Host Interface Signal (VDDH powered):
38
HCKI
DI
Host clock input.
45
XCSN
DI
Chip select input pin, active low.
47:50
A[4:1]
DI
Address input pins.
54
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.
55
D14
DI/DO
Data bus D14 pin.
60:64
D[13:9]
DI/DO
Data bus D[13:9] pins.
1:5
D[8:4]
DI/DO
Data bus D[8:4] pins, D[7:0] is the low byte of the data bus.
9:12
D[3:0]
DI/DO
Data bus D[3:0] pins.
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