W86L488AY WINBOND [Winbond], W86L488AY Datasheet - Page 14

• Manufacturer Part Number: W86L488AY
• Description: SD/ SDIO/ MMC MEMORY CARD BRIDGE
• Manufacturer: WINBOND [Winbond]

5. BLOCK DIAGRAM
5.1 W86L488Y Block Diagram
XWRLN/XBE1
XWRHN/XBE0
XRDN/XRWN
XDAKN
XDRQN
XRDYN
D[15:0]/
D[7:0]
XINTN
XCSN
A[3:1]
XASN
A0
Data Packing
DMA Circuit
Controller
Fig. 5-1 Block Diagram of W86L488Y.
Circuit
/Write
Read
Address
HCKI
Decode
Type Select
Host I/F
Data FIFO
128 Bytes
Interrupt Circuit
XTYP2
CMD Reg
17 Bytes
Rsp Reg
6 Bytes
Register File
- 11 -
System clock
RSTN
Serial to Parallel
Parallel to Serial
Serial to Parallel
Parallel to Serial
Publication Release Date: February 5, 2004
SD Bus
Control
Preliminary W86L488
or
or
Divider
Clock
VDD
SD/SDIO/MMC
Access Circuit
General Port
XTI
Registers
Crystal
Driver
Command
Response
Packing
Circuit
VSS
Data
XTO
Revision 0.82
GIO[4:0]
CLK
CMD
DAT[3:0]