w86l488 Winbond Electronics Corp America, w86l488 Datasheet - Page 8

• Manufacturer Part Number: w86l488
• Description: Sd/ Sdio/ Mmc Memory Card Bridge
• Manufacturer: Winbond Electronics Corp America

4.1 W86L488Y Pin Descriptions, continued
Crystal Driver (VDD3 powered):
Host Interface Signal (VDDH powered):
36:38
44:48
7:10
PIN
1:5
40
41
33
34
11
13
14
28
35
XWRHN/
XWRLN/
D15/A0
D[13:9]
XINTN
XCSN
NAME
D[8:4]
D[3:0]
A[3:1]
XBE0
XBE1
HCKI
XTO
D14
XTI
DI/DO
DI/DO
DI/DO
DI/DO
DI/DO
TYPE
DO
DO
DI
DI
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.
Interrupt request pin, active low.
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.
Type 1:
High byte (D15 to D8) write control pin, active low.
Type 2:
High byte (D15 to D8) data valid pin, active low.
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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Publication Release Date: February 5, 2004
DESCRIPTION
Preliminary W86L488
Revision 0.82