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參數資料
型號: W86L388D
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: W86L388D Winbond Host Interface SD/MMC Memory Card Bridge
中文描述: SPECIALTY MICROPROCESSOR CIRCUIT, PQFP48
封裝: 7 X 7 MM, 1.40 MM HEIGHT, LQFP-48
文件頁數: 11/28頁
文件大小: 386K
代理商: W86L388D
W86L388D
Preliminary
Publication Release Date: August 2001
- 8 -
Revision 0.50
7. FUCNTIONAL DESCRIPTION
7.1 Host Interface
The Host interface type may be type 1 or type. The read cycle always 16-bit access and the write
cycle may be 16-bit access or high byte or low byte access.
Host Interface Type 1:
The Host interface type 1 is selected when XTYP2 pin is low. Figure 7-1 shows the timing of CPU
read and write in type 1. Figure 7-2 is the timing of CPU write high byte and write low byte.
Fig. 7-1 16-bit Read and Write Access in Host I/F Type 1.
A[3:1]
D[15:0]
XRDN
XWRLN
XCSN
XWRHN
DO[15:0]
DI[15:0]
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